Gujarat Elections News Updates: Union ministers Amit Shah, Rajnath Singh and Nitin Gadkari, chief ministers Bhupendra Patel (Gujarat), Yogi Adityanath (Uttar Pradesh), Himanta Biswa Sarma (Assam) and Shivraj Singh Chouhan (Madhya Pradesh), and the party’s national president J P Nadda are among the 40 star campaigners for the polls