Thane: A 48-year-old coaching class owner in Thane district was defrauded of over Rs 1.88 crore in a share trading scam that started over WhatsApp group membership, police said on Wednesday.

According to the complainant, an unknown person had added him to the WhatsApp group 'Stock Vanguard (F)' in March, an official said.

He told police that the group had 170 members and advice about share trading was posted there.

The official said the complainant found the advice credible and invested money in the recommended stocks, following which he was added to another group 'Stock-Vanguard-VIP'.

Three persons, who identified themselves as Isha, Divya and Raj Rupani, approached him, showed him some kind of 'SEBI certificate' to gain his trust, and asked him to sign up for an app called CINVEN/IC Services. You can earn huge profits by investing through this medium. , the complainant said.

He claimed that he invested more than Rs 1.88 crore but got no response when he asked for his money back.

Officials said a case of cheating was registered at Vitthalwadi police station under section 420 (cheating) of the Indian Penal Code, but no arrests have been made so far.