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, who has died aged 92, was the technocrat behind the economic reforms that led to India’s emergence as a world power, first as finance minister and latterly as prime minister of India from 2004 to 2014.