India's Top 2% Scientists 2021: Career-Long List

India has 2,042 scientists on the 2021 career-long Top 2% list, up 37.0% from 1,491 in 2020. That places India 14th in the world by number of listed scientists, up 2 places. Indian Institute of Science has the most listed scientists (114), followed by Indian Institute of Technology Delhi (86).

Single Year

3,352

+1,039 (+44.9%) vs 2020

Career Data

2,042

+551 (+37.0%) vs 2020

World rank by count

#14

up 2 places vs 2020

Institutes

683

+137 (+25.1%) vs 2020

Scientists in India on the list, by year

The career-long count has grown 37% since 2020.

Career-long list, change on the previous year

2021+37.0%

2022+8.0%

2023+16.9%

2024+14.0%

2025+14.7%

Show the numbers

Year	Single Year	Change	Career Data	Change
2020	2,313		1,491
2021	3,352	+44.9%	2,042	+37.0%
2022	3,761	+12.2%	2,206	+8.0%
2023	4,635	+23.2%	2,578	+16.9%
2024	5,351	+15.4%	2,939	+14.0%
2025	6,236	+16.5%	3,371	+14.7%

Top 10 institutes in India

By number of listed scientists

Career-long list2021

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All 2,042 scientists

Career-long list2021

The first 100 are free to browse.

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Rank in India	World rank	Scientist	Institute	Sub-field	Rank in sub-field
1	296	DG Desiraju, Gautam R.	Indian Institute of Science	Inorganic & Nuclear Chemistry	Rank 3
2	330	RC Rao, C. N.R.	Jawaharlal Nehru Centre for Advanced Scientific Research	Chemical Physics	Rank 14
3	1,395	SA Sen, Ashoke	Harish Chandra Research Institute	Nuclear & Particle Physics	Rank 15
4	2,385	PA Pandey, Ashok	Indian Institute of Toxicology Research	Biotechnology	Rank 7
5	3,377	PT Padmanabhan, T.	Inter-University Centre for Astronomy and Astrophysics India	Nuclear & Particle Physics	Rank 46
6	3,393	DU Das, Undurti N.	GVP Medical College and Hospital	Nutrition & Dietetics	Rank 27
7	3,807	Ali, Imran	Jamia Millia Islamia	Analytical Chemistry	Rank 16
8	5,111	SP Srivastava, P. K.	Birla Institute of Technology, Mesra	Immunology	Rank 204
9	5,521	GP Gogate, Parag R.	Institute of Chemical Technology	Chemical Engineering	Rank 18
10	7,200	RR Rao, Ravipudi Venkata	S. V. National Institute of Technology	Industrial Engineering & Automation	Rank 52
11	7,250	JN Jana, Nikhil R.	Indian Association for the Cultivation of Science	Nanoscience & Nanotechnology	Rank 97
12	7,443	CR Chandra, Ranjit K.	Allergy	Pediatrics	Rank 19
13	7,632	SS Sarin, Shiv K.	Institute of Liver and Biliary Sciences	Gastroenterology & Hepatology	Rank 124
14	7,751	GR Gupta, Rajeev	Indian Institute of Technology Kanpur	Nuclear & Particle Physics	Rank 123
15	7,980	SS Sundar, Shyam	Banaras Hindu University, Institute of Medical Sciences	Tropical Medicine	Rank 10
16	8,026	SR Siddique, Rafat	Thapar Institute of Engineering & Technology	Building & Construction	Rank 9
17	8,061	LC Lokhande, Chandrakant D.	D. Y. Patil University, Kolhapur	Applied Physics	Rank 192
18	8,528	SB Singh, Bhim	Indian Institute of Technology Delhi	Electrical & Electronic Engineering	Rank 15
19	8,716	AT Aminabhavi, Tejraj M.	Karnatak University	Polymers	Rank 70
20	8,741	MV Mohan, Viswanathan	Madras Diabetes Research Foundation	Endocrinology & Metabolism	Rank 257
21	8,853	GR Gupta, Rajeev	Eternal Heart Care Centre and Research Institute	General & Internal Medicine	Rank 134
22	8,958	DD Das, Dipak Kumar	GLA University, Mathura	Biochemistry & Molecular Biology	Rank 468
23	9,339	TN Tuteja, Narendra	International Centre for Genetic Engineering and Biotechnology	Plant Biology & Botany	Rank 80
24	9,646	AA Agarwal, Avinash Kumar	Indian Institute of Technology Kanpur	Energy	Rank 82
25	9,842	SR Sankaranarayanan, Rengaswamy	RTI International	Oncology & Carcinogenesis	Rank 450
26	10,385	GH Garg, Harish	Thapar Institute of Engineering & Technology	Artificial Intelligence & Image Processing	Rank 172
27	10,423	RK Reddy, K. Srinath	Public Health Foundation of India	General & Internal Medicine	Rank 149
28	10,499	YJ Yadav, Jhillu Singh	Indian Institute of Chemical Technology	Organic Chemistry	Rank 225
29	10,541	TS Thomas, Sabu	Mahatma Gandhi University	Polymers	Rank 88
30	10,558	RB Ranu, Brindaban C.	Indian Association for the Cultivation of Science	Organic Chemistry	Rank 226
31	10,710	AA Ajayaghosh, Ayyappanpillai	National Institute for Interdisciplinary Science and Technology	Organic Chemistry	Rank 231
32	11,461	BB Bagchi, Biman	Indian Institute of Science	Chemical Physics	Rank 293
33	11,825	FS Flora, S. J.S.	National Institute of Pharmaceutical Education and Research, Raebareli	Toxicology	Rank 37
34	12,411	YC Yajnik, C. S.	KEM Hospital	Endocrinology & Metabolism	Rank 342
35	12,683	KV Kumar, Vikas	Indian School of Business	Marketing	Rank 17
36	14,225	PS Pal, Sankar K.	Indian Statistical Institute, Kolkata	Artificial Intelligence & Image Processing	Rank 239
37	14,560	VM Venkata Mohan, S.	Indian Institute of Chemical Technology	Biotechnology	Rank 33
38	14,656	RA Ramachandran, Ambady	Dr. A Ramachandran's Diabetes Hospitals	Endocrinology & Metabolism	Rank 398
39	14,683	PN Pal, Nikhil R.	Indian Statistical Institute, Kolkata	Artificial Intelligence & Image Processing	Rank 245
40	15,055	OS Ogale, Satishchandra	Indian Institute of Science Education and Research Pune	Applied Physics	Rank 353
41	15,612	NA Nangia, Ashwini K.	University of Hyderabad	Inorganic & Nuclear Chemistry	Rank 112
42	15,990	MA Misra, Anoop	Fortis Healthcare Ltd.	Endocrinology & Metabolism	Rank 434
43	16,063	PP Patil, P. S.	Shivaji University	Applied Physics	Rank 377
44	16,180	Jha, Vivekanand	Manipal Academy of Higher Education	Urology & Nephrology	Rank 172
45	16,237	SS Sharma, S. K.	All India Institute of Medical Sciences, New Delhi	Nuclear Medicine & Medical Imaging	Rank 71
46	16,979	KR Kumar, Rakesh	Rajiv Gandhi Centre for Biotechnology	Oncology & Carcinogenesis	Rank 771
47	17,689	KS Kulkarni, Shrinivas K.	University Institute of Pharmaceutical Sciences India	Pharmacology & Pharmacy	Rank 143
48	17,799	KS Kumar, Sandeep	All India Institute of Medical Sciences, New Delhi	Applied Physics	Rank 424
49	17,929	SK Srinivasan, Krishnapura	Central Food Technological Research Institute India	Food Science	Rank 50
50	17,965	SD Sarma, D. D.	Indian Institute of Science	Applied Physics	Rank 430
51	18,104	JJ Joshi, Jyeshtharaj B.	Institute of Chemical Technology	Chemical Engineering	Rank 61
52	18,164	SV Sahni, Varun	Inter-University Centre for Astronomy and Astrophysics India	Nuclear & Particle Physics	Rank 275
53	18,244	VR Varshney, Rajeev K.	International Crops Research Institute for the Semi-Arid Tropics	Plant Biology & Botany	Rank 190
54	18,641	MG Madras, Giridhar	Indian Institute of Science	Chemical Engineering	Rank 64
55	19,073	RT Rudrapatnam, Tharanathan N.	Central Food Technological Research Institute India	Food Science	Rank 56
56	19,365	PD Philip, Daizy	Mar Ivanios College, Thiruvananthapuram	Chemical Physics	Rank 487
57	20,105	JR Jain, R. K.	Shobhit Institute of Engineering and Technology	Networking & Telecommunications	Rank 160
58	20,354	GP Gupta, Prakash C.	Healis - Sekhsaria Institute for Public Health	Oncology & Carcinogenesis	Rank 938
59	20,365	SR Simon, R.	Institute of Mathematical Sciences India	Optics	Rank 79
60	20,631	SM Sebastian, Mailadil Thomas	National Institute for Interdisciplinary Science and Technology	Materials	Rank 239
61	20,723	PM Prasad, M. N.V.	University of Hyderabad	Environmental Sciences	Rank 89
62	20,794	KM Khuroo, Mohammad S.	Sher-I-Kashmir Institute of Medical Sciences	Gastroenterology & Hepatology	Rank 321
63	21,055	GA Goel, Atul	Seth GS Medical College and KEM Hospital	Neurology & Neurosurgery	Rank 1,688
64	21,262	BK Biradha, Kumar	Indian Institute of Technology Kharagpur	Inorganic & Nuclear Chemistry	Rank 150
65	21,508	SY Sharma, Yogesh C.	Indian Institute of Technology Banaras Hindu University	Energy	Rank 199
66	21,659	MA Mittal, Alok	Maulana Azad National Institute of Technology	Chemical Engineering	Rank 77
67	21,950	Ahmaruzzaman, Md	National Institute of Technology Silchar	Chemical Engineering	Rank 79
68	22,149	RN Rahman, Nazneen	Kuvempu University	Oncology & Carcinogenesis	Rank 1,021
69	22,322	CP Chattaraj, Pratim Kumar	Indian Institute of Technology Kharagpur	Chemical Physics	Rank 541
70	22,638	BM Basu, M.	Jadavpur University	Energy	Rank 210
71	22,901	SV Srivastava, Vimal Chandra	Indian Institute of Technology Roorkee	Chemical Engineering	Rank 85
72	23,025	YG Yadav, Ganapati D.	Institute of Chemical Technology	Chemical Engineering	Rank 86
73	23,563	AB Alger, Bradley E.	University of Maryland School of Medicine	Neurology & Neurosurgery	Rank 1,869
74	23,768	SV Singh, Vinod Kumar	ICAR - Indian Agricultural Research Institute, New Delhi	Organic Chemistry	Rank 468
75	23,827	BP Balaram, P.	National Centre for Biological Sciences	Biophysics	Rank 52
76	23,919	BK Bhattacharyya, Kankan	Indian Institute of Science Education and Research Bhopal	Chemical Physics	Rank 575
77	24,213	PK Parida, Kulamani	Siksha O Anusandhan (Deemed to be University)	Physical Chemistry	Rank 88
78	24,964	DP Dash, Pradipta Kishore	Siksha O Anusandhan (Deemed to be University)	Energy	Rank 236
79	25,433	GB Goswami, B. N.	Cotton University	Meteorology & Atmospheric Sciences	Rank 324
80	25,484	PN Pradhan, Narayan	Indian Association for the Cultivation of Science	Physical Chemistry	Rank 94
81	25,528	RC Rajendran, Chandrasekharan	Indian Institute of Technology Madras	Operations Research	Rank 69
82	25,696	DP Desjeux, Philippe	Path Owh (Formerly One World Health)	Tropical Medicine	Rank 36
83	26,064	BS Bandyopadhyay, Sanghamitra	Indian Statistical Institute, Kolkata	Artificial Intelligence & Image Processing	Rank 429
84	26,562	YS Yadav, Sudesh Kumar	Center of Innovative and Applied Bioprocessing	Plant Biology & Botany	Rank 301
85	26,839	SR Singh, Rajesh Kr	Management Development Institute, Gurgaon	Oncology & Carcinogenesis	Rank 1,239
86	26,883	PY Prasad, Yellapregada Venkata Rama Krishna	City University of Hong Kong	Materials	Rank 319
87	26,909	AR Aggarwal, Rakesh	Jawaharlal Institute of Postgraduate Medical Education and Research	Gastroenterology & Hepatology	Rank 418
88	26,960	KD Kundu, Debasis	Indian Institute of Technology Kanpur	Statistics & Probability	Rank 114
89	27,163	NH Nagendra, Harini	Azim Premji University	Ecology	Rank 461
90	27,436	DD Das, Debabrata	Indian Institute of Technology Kharagpur	Energy	Rank 259
91	27,515	MS Moulik, Satya Priya	Jadavpur University	Chemical Physics	Rank 646
92	27,597	AR Agarwal, Ritesh	Postgraduate Institute of Medical Education & Research, Chandigarh	Respiratory System	Rank 282
93	27,756	SS Sastry, Srikanth	Jawaharlal Nehru Centre for Advanced Scientific Research	Fluids & Plasmas	Rank 222
94	27,815	PK Priyadarsini, K. Indira	University of Mumbai	Chemical Physics	Rank 653
95	27,825	KV Kakkar, Vijay V.	Thrombosis Research Institute, India	Cardiovascular System & Hematology	Rank 1,176
96	27,927	KV Kumar, Vijay	Jamia Millia Islamia	Applied Physics	Rank 686
97	28,141	KA Kamal, Ahmed	Jamia Hamdard	Medicinal & Biomolecular Chemistry	Rank 79
98	28,228	SA Samanta, Anunay	University of Hyderabad	Chemical Physics	Rank 661
99	28,642	CV Chandrasekhar, Vadapalli	Indian Institute of Technology Kanpur	Inorganic & Nuclear Chemistry	Rank 194
100	28,649	SN Singh, Narpinder	Guru Nanak Dev University	Food Science	Rank 94
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Countries with a similar count

Career-long list2021

Switzerland2,974 scientistsin 2021

Sweden2,889 scientistsin 2021

Spain2,813 scientistsin 2021

Israel1,870 scientistsin 2021

Denmark1,808 scientistsin 2021

South Korea1,751 scientistsin 2021

Explore other countries

Career-long list2021

Iran654 scientistsin 2021

Pakistan127 scientistsin 2021

Bangladesh40 scientistsin 2021

Japan7,362 scientistsin 2021

China6,943 scientistsin 2021

Taiwan1,479 scientistsin 2021

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Frequently asked questions

How many scientists from India are in the 2021 Stanford Top 2% list?

3,352 scientists affiliated with India are on the 2021 single-year list, and 2,042 are on the career-long list.

Which institute in India has the most Top 2% scientists?

On the 2021 career-long list, Indian Institute of Science has the most listed scientists from India, with 114. It is followed by Indian Institute of Technology Delhi with 86.

How has the number of Top 2% scientists in India changed since 2020?

On the career-long list, India went from 1,491 scientists in 2020 to 2,042 in 2021, a change of +37.0%.

What is the difference between the single-year and career-long lists?

The single-year list ranks scientists on the citations their work received in one year. The career-long list ranks them on citations across their whole career. Both lists are published every year, and a scientist can be on one, both or neither.

What is the official source of this data?

The rankings come from the science-wide author databases of standardized citation indicators published by Ioannidis et al. in the Elsevier Data Repository, updated every year. TOPSCINET, an independent platform, organises that data by country, year, institute and field, so you can compare and explore it.