During his 33 years of service in MECON, Chattopadhyay has made numerous contributions in various fields. Some of the notable assignments headed by him include detailed engineering and execution of various processing lines, projects of Bokaro Steel Plant and Rourkela Steel Plant, Bar & Rod Mill at SISCOL Project, Salem and Reheating Furnace of Boraro Steel Plant.
Photos: Katrina Kaif, Shamita Shetty at Mumbai airport
Photos: Varun Dhawan, Alia Bhatt promote 'Badri...' on 'Dil Hai Hindustani'
In pictures: 15 facts about kissing that will surprise you
Photos: Shahid Kapoor and Mira Rajput at cafe in Bandra
Photos: Deepika Padukone, Neha Dhupia and Soha Ali Khan at event