Indian detectives have arrested the brother of a doctor accused of organising illegal organ transplants.
Mr Jeevan Kumar went missing with his brother earlier this month
Amit Kumar was held in Nepal and deported to India earlier this month for allegedly heading an illegal kidney transplant ring.
His brother, Jeevan Kumar, whom the police describe as an accomplice in the illegal trade, was arrested in the capital, Delhi, on Sunday.
Mr Amit Kumar has denied the accusations of illegal practices.
India bans trade in live kidneys unless the organ is donated by a blood relative or a spouse, or if two families agree a swap.
But many continue to sell their kidneys to satisfy demand from rich clients, including Westerners, waiting for transplants.
One senior policeman has also been arrested for allegedly receiving bribes from Mr Amit Kumar, officials said.
They say Mr Kumar paid money to some policemen after they had discovered his illegal trade.
In January, police raided an illegal clinic run by Mr Kumar in Delhi's wealthy suburb of Gurgaon after being tipped-off by a victim. Four people were arrested.
The donors were allegedly paid up to $2,500 (£1250).
Mr Kumar was detained in a resort in Nepal on 7 February and deported to India two days later.