Doctor Sabeel Ahmed will be deported to India on Wednesday night from the UK after serving 18 months in jail for withholding information about his brother, Kafeel Ahmed's plot to blow up Glasgow airport.
He is expected to be brought back in Bangalore late in the night, family sources said.
Sabeel's mother Dr Zakia Ahmed told PTI that he was in regular touch with her over phone and had called up her on Tuesday, saying he would arriving here late in the night.
"I am really happy that my son is coming back. All off us - his father Maqbool Ahmed and sister Sadia Kauser are anxiously waiting to see him. Our prayers have been answered. Allah is with us," she said.
In the June 30 attack, Kafeel was seen driving a jeep filled with propane canisters into the airport terminal and setting it alight. But the burning vehicle failed to break through the glass doors and no one was injured. Kafeel, an engineer, subsequently succumbed to his burns.
Sabeel, 28, who worked at the National Health Service and had admitted that he failed to inform police about Kafeel's plans to carry out the suicide bombing on June 30 last, will be escorted by two metropolitan police officers to Bangalore.
The London court held that he will be released from custody and deported to India because of the time he has already served while on trial.
Originally from Bangalore, Sabeel was arrested in Liverpool on June 30, 2007.