Former Jharkhand Congress chief Ajoy Kumar on Thursday joined the Aam Aadmi Party (AAP) in the presence of Delhi Deputy Chief Minister Manish Sisodia. "Only the AAP is truly a party of the 'aam aadmi' where anyone can join and work towards development," he said. Kumar, a former IPS officer, resigned as Jharkhand Congress chief last month, accusing some colleagues of promoting their own interests over the party and indulging in corrupt practices. PTI