Nikhil, the primary suspect in the Majnu Ka Tila double murder case, has been arrested in Haldwani, Uttarakhand. He is accused of fatally attacking his former live-in partner, Sonal, and an infant, driven by suspicions of infidelity and revenge for a past abortion. After the crime, Nikhil attempted to flee towards Nepal, but police apprehended him based on a tip-off.