Till the date 2 professor received Bharat Ratna, 3 professors receved Padma Vibhushan, 5 professor received Padma Bhushan and quite a few professors received Padma Shree. Let go through it.
- Prof C. V. Raman (1954)
- Prof C. N. R. Rao (2014)
- Prof Satish Dhavan (1981)
- Prof C. N. R. Rao (1984)
- Prof Roddam Narsimha (2013)
- Dr Homi J Bhabha (1954)
- Prof J. C. Ghosh (1954)
- Prof Satish Dhavan (1971)
- Prof Roddam Narsimha (1981)
- Prof V. Rajaraman (1998)
- Prof G. Padmanabhan (2003)
- Prof Padmanabham Balaram (2014)
There is long list for it. I am summarising what I know.
- Prof C. N. R. Rao (1974)
- Prof G. Padmanabhan (1991)
- Prof Govardhan Mehta (2001)
- Prof P. Balaram (2002)
- Prof N. Balakrishnan (2002)
- Prof M. Vijayan (2004)
- Prof Bhagavatula Dattaguru (2005)
- Prof A. K. Sood (2013)
- Prof E. D. Jemmis (2014)
Interesting fact is till the date only 4 scientists have received Bharat Ratna and all the 4 have connection with IISc.
- Prof C. V. Raman (1954, former director of IISc)
- Prof C. N. R. Rao (2014, Former director of IISc)
- M. Vishvesaraya (1955, honorary fellow of IISc)
- Dr. A. P. J. Kalam (1997, honorary fellow of IISc)
NOTE: There are many students from IISc who received above awards. I am restricting myself to IISc faculty only otherwise list will become too long.