Amritsar, April 26 (ANI): Prime Minister Manmohan Singh's step-brother, Daljit Singh Kohli, has joined the BJP. Kohli was present on stage at the joint BJP-Shiromani Akali Dal (SAD) rally held in Amritsar on Friday night. The rally was also attended by Punjab Chief Minister Parkash Singh Badal. Addressing the gathering, Modi said that Kohli's decision to join the BJP would increase the party's strength, and added that it would be his endeavour to forge a close relationship with the latter. Meanwhile, shocked by the news, PM's relatives are with the Congress party and confirmed their support for the party and Singh.