"There was no sign of foul play or any struggle," Abhinav Kumar, the minister's aide, told reporters outside the hotel.
A police officer said: "The minister informed us of the death and it seems it is a case of suicide."
An hour before the news broke on TV channels, Tharoor, an avid Twitter user with over two million followers, said in a tweet he would miss the Jaipur Literature festival later this month because of his wife's illness.
Pushkar, 52, had married Tharoor in August 2010.
Pushkar and Tharoor, the Union minister of state for human resource development, were at the centre of a controversy after reports emerged that she was upset over reported text and tweet messages between her husband and Pakistani journalist Mehr Tarar. Tharoor and Tarar were allegedly having an affair. Tarar had denied an affair with the thrice-married Tharoor.
On Friday, Tharoor was present at a daylong Congress session, which ended around 5 pm.
Tarar said she was "absolutely shocked" to learn of Pushkar's death. "What the hell. Sunanda. Oh my God," the 45-year-old Lahore-based journalist said in a Twitter post.
"I just woke up and read this. I'm absolutely shocked. This is too awful for words. So tragic I don't know what to say. Rest in peace, Sunanda," she said in another tweet.
Asked if she knew Tharoor, Tarar had said on Thursday, "I met him in April last year for an interview in India. Then I met him in June in Dubai in a social gathering. I have been in touch with him once in a while on Twitter and email."
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
)