India has mourned one of its longest-serving prime ministers, Manmohan Singh, with a state funeral in Delhi. Singh led the country from 2004 to 2014 and was considered the architect of India's economic liberalisation.

The veteran leader, who was also credited for a landmark nuclear deal with the United States, died late Thursday at age 92.

Former Prime Minister Dr. Manmohan Singh is widely regarded as one of the most successful economists. His journey, from being an economics professor at Delhi University to serving as RBI Governor and India's Finance Minister,