The Delhi police arrested AAP MLA Naresh Balyan on Friday night on charges of assault, its 13th legislator to land in Delhi police’s net, triggering sharp reaction from the party.

Balyan, MLA from Uttam Nagar, was arrested on a day that also saw deputy chief minister Manish Sisodia and Okhla MLA Amanatullah Khan being questioned by Anti-Corruption Branch in separate cases and news about a non-bailable warrant being issued against Matiala legislator Gulab Singh surfaced.

“AAP MLA Balyan was arrested on Friday in connection with a case of assault registered at Uttam Nagar police station last week,” said Dependra Pathak, joint commissioner of police (Southwest).

Balyan was called for questioning to the police station around 8.30 pm and was later arrested, said a senior police official. He added that Mahavir Fauji, an associate of Balyan, was also arrested. “In such matters, it is essential to arrest the accused since we have to know the facts. It’s a bailable offence in which he has been arrested and he is likely to be given bail by late night,” said the official.

Former AAP volunteer and president of Mohan Garden RWA Henry George had accused Balyan and his associate of trespassing his office and attacking him and issuing threat to his life in the afternoon in his complaint lodged with the police.