Former Punjab CM Captain Amarinder Singh on Wednesday called on Union home minister Amit Shah at the latter’s residence here. The two leaders had a meeting of over 50 minutes, boosting speculation about the Congress leader either joining BJP or allying with it for the Punjab polls.Former Punjab CM Captain Amarinder Singh on Wednesday called on Union home minister Amit Shah at the latter’s residence here. The two leaders had a meeting of over 50 minutes, boosting speculation about the Congress leader either joining BJP or allying with it for the Punjab polls.