Manmohan Singh ji has tested positive after 2 doses of COVAXIN
BSYediyurappa also contracted covid19 after both doses of covaxin.
Shri TRBalu , Duraimurugan also fell sick after one dose.

Does COVAXIN even work? Can those who have taken covaxin opt for other vaccine?

Have there been cases of any other vaccine recipients getting infected?
Covid19 without any protection/prevention had a recovery rate of more than 90 percent. So what is the impact of vaccines?

ASTRA ZENECA OXFORD 's covishield has reported efficacy of over 91 per cent.
Do we have figures for covaxin?
Sinovac, china's inactive virus vaccine similar to covaxin, has reported only 44 % efficacy in Chile.

I am NOT an anti vaxxer, i fully support vaccination, I want to know the efficacy of the vaccines available to us.

UPDATE: Many, like me, raised questions on the effectiveness of COVAXIN following a spate of high profile infections. Bharat Biotech has responded with comforting statistics. Thank you.
https://www.livemint.com/news/india/24-per-10-000-people-infected-after-getting-vaccinated-govt-11619022062884.html
Thank u to everyone who shared valuable relevant info in this thread.