Complex sentence: There, he faces the anger of Sandhya's father (Kadhal Dhandapani), who is a strong believer of older ideologies, but Sandhya hates Tamizharasu and the reason for that is told in a flashback.
Split into simpler sentences: There, he faces the anger of Sandhya's father (Kaadhal Dhandapani), who is a strong believer of older ideologies. But, Sandhya hates Tamizharasu and the reason for that is told in a flashback.