Thousands of Buddhists gathered in India's western city of Mumbai on Sunday to lay to rest part of the ashes and bones of Lord Buddha in a ceremony resurrected after almost 2000 years.

Monks in flowing orange robes chanted hymns from scriptures as the remains were lowered into a shallow pit on top of a 90-ft (27 metres) high stone dome, as part of celebrations to mark the 2250th anniversary of the spiritual leader's enlightenment.

Organisers of the ceremony said this was the first time in around 2,000 years that Buddha's mortal remains were being enshrined.

"The relics now kept in this magnificent pagoda came from an ancient dome discovered during an archaeological expedition in south India in early-1900s," Acharya S.N. Goenka told reporters.