The AAP government, on Monday, announced that the BSP's Madhya Pradesh in-charge Puran Singh Ahirwar and a nephew of the party's founder Kanshi Ram have joined the Arvind Kejriwal-led party in the national capital. Along with them, 17 other BSP leaders from Madhya Pradesh joined the Aam Aadmi Party (AAP) in the presence of its Rajya Sabha MP Sanjay Singh.