Amritsar, April 08 (ANI): Firing a salvo at BJP, Congress leader Captain Amarinder Singh, said alliance of BJP with Shiromani Akali Dal (SAD) in Punjab was only to garner votes. Singh, who is contesting elections against BJP senior leader, Arun Jaitley in Amritsar termed BJP-SAD alliance most opportunistic with political gain. Meanwhile, Jaitley said the alliance will promote peace and foster friendly relations among people.