A visitor from Kolkata has gone missing from spiritual guru Asaram Bapu's ashram in Ahmedabad, his family has told police.

According to a complaint lodged with the Sabarmati police, Krishna Prasad Sahu, 53, disappeared last month after the other six family members retired for the night at the ashram at Motera.

The family had since returned to Kolkata but came back to file a complaint after Sahu remained untraced.