BJP National President JP Nadda constituted an eight-member NDA delegation to probe the circumstances that led to the stampede at the actor-politician Vijay's rally in Tamil Nadu's Karur on Saturday. The delegation, headed by MP Hema Malini, also has MPs Anurag Thakur, Tejasvi Surya, and Shrikant Shinde as members. The delegation is instructed to submit its report at the earliest.