Blood as wine

Chayya khandelwal who's a college student is now being forced to marry her father's biggest invester's son Hriday Malhotra.Things take an unexpected turn at a party on day leaving everyone in shock,disgust and more importantly shock. The more shocking thing is Ahaan Malhotra's sudden death at the altar but who's marriage was it? what was the sudden turn? what was the reason for the death?