GURGAON/LUCKNOW: The man behind the Rs 100 crore kidney racket - Dr Amit Kumar - may be ensconced in Nepal while investigators trace the remaining links of his network in Delhi and NCR.

Senior police officers say Kumar might have sneaked into Kathmandu through the porous UP-Nepal border. A news channel claimed that Dr Kumar had been caught on hidden camera about two months ago, saying that he had contacts in Kathmandu and also conducted surgeries there.

Reports on Sunday suggested that Dr Kumar was present at his Sector 23 "clinic" 30 minutes before the premises were raided by police early Friday morning. TOI had reported on Saturday that police suspect a mole inside the force might have tipped off Dr Kumar on the operation.

Dr Upender's driver and an aide were detained on Sunday and an Indica recovered.