46-year-old Pocha was Editor-in-Chief when 'News X' channel was launched and was now a senior editorial member of the ITV Group, which controls the channel.
News X journalists said that Pocha complained of chest pain at his Gurgaon residence and was rushed to a local hospital where he breathed his last at 4:30 am.
Earlier, he was editor of 'Business World' and the China correspondent for 'Boston Globe'.
Condoling his demise, Prime Minister Narendra Modi said Pocha will be remembered as a leading voice on TV, print and social media.
"Shocked and saddened to hear about Jehangir Pocha's demise. My condolences to his family in this hour of grief. May his soul rest in peace," Modi wrote on micro-blogging website Twitter.
"His frank and insightful views on issues will be missed," the Prime Minister said in another tweet.

The Broadcast Editors' Association (BEA), a body which has editors of leading news channels as its members, called Pocha's demise a big loss to the world of TV journalism.
"BEA condoles the sad demise of senior journalist and Editor-in-Chief of News X Jehangir Pocha. It is a big loss to the world of TV journalism. Jehangir was a dear colleague of ours and was a guiding force in BEA's activities," said a statement released by BEA president Shazi Zaman and general secretary NK Singh.


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