India, Oct. 6 -- A Mumbai-based CEO took to LinkedIn to share how he celebrated his birthday in an unusual way. Abhishek Agarwal claimed that he underwent a 90-hour fast, abstaining from food for almost four straight days. Agarwal said he sets a tough personal milestone every year to push his physical limits, and this year he did so through fasting.

"I did a 90-hour fast to celebrate my birthday!! Yes, no food for almost 4 days," CEO Abhishek Agarwal wrote on LinkedIn. He shared that on the first day, he didn't have many difficulties and even felt the challenge was "easy".

Recalling how it went after that, Agarwal posted, "Day 2: WHY did I do this; missed Zomato. Day 3: silence. Day 4: birthday + the clearest mind I'd had in months."

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