New Delhi: Former Prime Minister Dr Manmohan Singh was on Sunday evening admitted to the All India Institute of Medical Sciences (AIIMS) in the national capital after he complained of chest pain. Also Read - Manmohan Singh to Assist Punjab to Revive Post-coronavirus State Economy

Singh, 87, was taken to the hospital around 8:45 PM. He is currently under observation at the cardio-thoracic ward. Also Read - PM Must Reassure Nation as India Facing 'Danger' From Trinity of Social Disharmony, Slowdown And COVID-19: Manmohan Singh

In 2009, Singh underwent a successful coronary by-pass surgery at AIIMS, a complex beating-heart operation that took nearly 14 hours. Also Read - 'Some People Get Foul Smell in Saying Bharat Mata Ki Jai', PM Modi's Veiled Attack on Manmohan Singh

Rajasthan Chief Minister Ashok Gehlot took to Twitter to wish Manmohan Singh a speedy recovery. “Much worried to know former PM Dr. Manmohan Singh ji has been admitted to AIIMS. I wish him speedy recovery and pray for his good health and long life,” he said in a tweet.

Delhi Chief Minister Arvind Kejriwal also expressed concern over Singh’s health. “Deeply concerned about Dr Manmohan Singhji’s health. Hope he makes a full recovery soon. All of India is praying for our former PM,” Kejriwal tweeted.

Notably, Singh is a senior leader of the opposition Congress and currently represents Rajasthan in the Upper House of Parliament. He was the prime minister between 2004 and 2014.