The lure of a high-paying pre-placement job offer from Microsoft, however, could not distract this talent away from his passion for research.

Patranabis has now decided to stay back at the IIT campus and do a PhD on hardware security for embedded systems.

"I never wanted to get into a corporate job after B Tech. My interest is in research and academics and I want to pursue that. I never had any second thoughts on this. All my teachers and my family supported me in this decision," said Patranabis.

Patranabis is in the minority amongst top rankers as most of them are now on their way to the corporate world.

Amongst high rankers, he will only have Anirban Santara from electronics and electrical communication engineering department to give company as a fellow PhD student at the IIT.

"There has been a trend of 1-2 high-ranked students staying back for PhD in IIT. But the top ranker staying back with us is rare," IIT-Kgp Director Partha Pratim Chakrabarti said.

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