Intensifying the manhunt for Khan Chacha owner Navneet Kalra in connection with the recovery of 524 oxygen concentrators from his restaurants in the national capital, the Delhi Police on Monday issued a lookout circular against him. Meanwhile, fearing arrest in the alleged oxygen concentrators' hoarding case, Navneet Kalra has filed an anticipatory bail plea at a Saket court in Delhi.

Delhi Police on Friday recovered 105 oxygen concentrators during raids at two upscale restaurants -- 96 from Khan Chacha and nine from Town Hall -- in Lutyen Delhi's Khan Market. On Thursday, police had recovered 419 oxygen concentrators from a restaurant-cum-bar in south Delhi's Lodhi Colony area.

Navneet Kalra is the owner of all three restaurants. He has been absconding since the raids and his mobile phone is switched off. The police on Sunday conducted multiple raids in neighbouring states and his Chattarpur farmhouse to nab Navneet Kalra. It is suspected that Navneet Kalra has left Delhi along with his family.