Prime Minister Narendra Modi paid tribute to former Prime Minister Manmohan Singh, who passed away at AIIMS Delhi on Thursday.Singh, 92, was rushed to the emergency department earlier in the evening in critical condition following a "sudden loss of consciousness,

Described as a "reluctant king" in his first stint as prime minister, the quietly spoken Manmohan Singh was arguably one of India's most successful leaders. The first Sikh in office, Singh, 92, was being treated for age-related medical conditions and died after he was brought to hospital after a sudden loss of consciousness on Thursday.