How Chakor free herself

Chakor frees herself by breaking her finger. Recently i watched same technique in Quantico

season 1 where two people tied up, one broke his thumb to free themselves.

It seems Chakor also broke her finger to free her hands then she removed the rope from the neck and jumped down by holding that rope. she sent Vivaan to Suraj's mom.KN is pointing gun at Tejaswini. But Chakor holds his hand turns his hand towards Chakor and Imili. The gun fires and bullet passes throw rope which Imili was hanged. The rope cuts and Imili fell down. Now KN pointed gun on Chakor.