Kolkata: Nandan Bhattacharya, former managing director of Webel passed away in the wee hours on Sunday.Bhattacharya was a visionary who crafted today’s Sector V popularly known as the IT Hub , the pride of Kolkata. He was instrumental in Bengal’s transition from Electronics to IT. The technocrat till his last days was a social worker and was a pillar of support for the challenged sector of the society. He is survived by his wife and two daughters. The body of Bhattacharya has been kept in Peace World. The last rites will be performed at Nimtala Crematorium around 11 am on Monday.