Doing BTech/BSc is especially helpful/necessary if you want do patent law. Look up alumni of Rajiv Gandhi School Of Intellectual Property Law on Linkedin. Almost entirely engineers who did LLB.
pramod rai of athena law associates. he is a gold medallist too. do not know what is your benchmark for success ? but, he is certainly a satisfied man with a decent practice in the ncr region.
There have also been hard core human rights lawyer from IITs.
Unfortunate how the state is treating her though. But in terms of impact, she probably is very successful.