ISLAMABAD: Sikh youth Ravinder Singh, has been murdered in Peshawar but his killer hasn't been identified yet.

The victim's body was found in the area under the Chamkani police station.

Ravinder Singh, 25, was the brother of journalist, Harmeet Singh. He lived in Malaysia but was in Peshawar to do shopping.

His killing comes close on the heels of a Muslim mob's attack on a revered Sikh shrine in Nankana Sahib, the birthplace of Guru Nanak.

India has asked the Pakistan government "to take immediate steps to ensure the safety, security, and welfare of the members of the Sikh community".

Pakistan Prime Minister Imran Khan condemned the attack on Sunday.

BJP leaders have pointed to the attack on Gurdwara Nankana Sahib to gather support for a controversial new law on citizenship that the government says gives hope to migrants who fled religious persecution in Pakistan and two other nations.

"Persecution of minorities in Pakistan is for real. Do those opposed to CAA [the Citizenship Amendment Act] still need more proof?" tweeted Union Minister Hardeep Singh Puri.

The Citizenship Amendment Act fast-tracks naturalisation for Pakistani, Afghan and Sikh illegal immigrants from six non-Muslim minority communities (including Sikhs and Hindus), who entered India on or before December 31, 2014.

Dozens have been killed in protests against the new law -- most of them in Uttar Pradesh.