Kafeel Ahmed told a news channel that his son has always been very polite and never fought with anyone.
The accused identified as Mohd Mustaqeem, originally from Balarampur, Uttar Pradesh, was also in touch with the IS entities of Kashmir, added sources.
'If the authorities go about completing this project the way they have proposed, this is going to cause a HUGE environmental impact not only on Malabar Hill but also on the rest of the city.'
The two IEDs he was found with were 'fully ready' and just needed to be activated with a timer, police said. Security was stepped up in the national capital and in neighbouring Uttar Pradesh following the arrest.
One brown jacket containing three explosive packets and another blue check jacket containing four explosive packets were recovered from his house, a senior police officer said.
Narayan Sai, son of arrested self-styled godman Asaram Bapu, remained untraceable on Friday even as the Gujarat police raided an ashram in Bihar's Darbhanga district to arrest him on rape charges while his aide was nabbed in Delhi for allegedly helping him.
'In a civilian area, the army cannot restrict civilians arbitrarily. It is not dadagiri.'
The national capital has received the season's highest rainfall at 63.1 mm.