Amritsar, May 9 -- Following escalating border tensions between India and Pakistan after the Pahalgam terror attack on April 22, India has closed its side of the Kartarpur Corridor - the only active surface-level link between the two countries - indefinitely.

The Union ministry of home affairs' bureau of immigration announced the closure of the corridor "till further orders".

The closure has halted the pilgrimage of Indian Sikh devotees to the historic Gurdwara Darbar Sahib in Kartarpur, Narowal district, Pakistan, while Pakistan continues to keep the corridor open on its side.

On Wednesday morning, around 150 Sikh pilgrims who had arrived at the Dera Baba Nanak integrated check post in Gurdaspur district were turned back after waiting...