Mangala's mother kills her self after she is raped by a cop she wears a mark on her forehead (Tilak) and swears to kill the cop and takes an oath that whoever takes that position at the police station will be killed.Years later Mangala has turned a Dacoit and terrorizes the region no one till date has seen her unmasked face and who dares to it gets killed similarly a cop gets killed in same passion.Inspector Vijay son of the cop killed by Mangala wears a mark on his forehead at this fathers funeral to kill Mangala,while the village head Thakur Balvant Singh and his brother team up with Mangala to eliminate Dadi Thakur a former military officer who has come to rescue villagers.During a raid in village by Dacoits Mangala is shot by her aide Bhupat for killing his brother Lakhna an old lady takes unconscious Mangala home as she feels her dead daughter Chanda who was killed by Mangala has returned back.When Mangala gains conscious she tires to escape but is stopped by the old lady she then starts to live in village as Chanda and helps poor villagers Vijay takes charge of the village police station and falls in love with her not knowing her true identity while Bhupat takes over as the gangs leader and terrorizes village with Thakur Balwant Singh.