Indian police is not so dumb to declare someone dead so quickly. They search nearby police stations, hospitals etc. They also look at the criminal aspects, as who will gain from Dev's death, and the suspect list will include Santanu and Arjun! Besides, the car was smashed from behind very badly! So criminal angle will certainly probed. Only audiences are dumb here.
Radhika didi musibat se bahar nikalti hain. Kathin paristithi mein bhi apna atmavishwas khone nhi deti aur sachhe dil se koshish karti hain aur safal bhi hoti hain. Radhika didi ki wajah se sankat aata nhi, tal jaata hai.