India’s former prime minister Manmohan Singh, who steered the country through sweeping reforms and paved the way for its emergence as a global economic powerhouse, has died. He was 92.

Authorities in India have declared a seven-day mourning period to honor Manmohan Singh as politicians and public paid tributes to the country’s former prime minister widely regarded as the architect of India’s economic reform program.

Manmohan Singh, India's 13th Prime Minister and a pivotal figure in the country's economic transformation, died in a New Delhi hospital on Dec. 26 of age-related medical conditions. He was 92. Singh served as Prime Minister from 2004 to 2014,