A man was arrested for alleged involvement in a racket in which an 81-year-old woman was duped of Rs 7.8 crore using the 'digital arrest' modus operandi, a Mumbai police official said on Thursday, reported the PTI.

The accused, 21-year-old Kartik Chaudhary of Malvani in Malad area of Mumbai, allegedly provided his bank account to another associate, through which Rs 1.98 lakh was transferred from the victim's account, the official said.

"Chaudhary withdrew the amount and handed it over to another accomplice, whom he had come in contact with through Telegram app. In return, he received a commission," the official said, according to the PTI.