AAP legislator Naresh Balyan was arrested in Delhi on Saturday in connection with an extortion case lodged last year, police said.
The MLA from Delhi's Uttam Nagar Assembly segment was called to the Delhi Police's Crime Branch office in R K Puram for questioning and was later arrested, they said.
The development came hours after the BJP alleged that Naresh Balyan was involved in extortion activities and questioned why AAP chief Arvind Kejriwal has not taken action against him.