AAP legislator Devinder Singh Sehrawat joined the BJP on Monday, the second legislator to quit the party and join the saffron fold in less than a week.
AAP's Gandhi Nagar MLA Anil Bajpai quit the party and joined the BJP on Friday last week.
Sehrawat, the party's legislator from Bijwasan, joined the party at a press conference in the presence of senior Delhi BJP leaders.
Accusing the party of "ignoring" and "cornering" him, Sehrawat said he was not even invited for party functions.