Tamil Nadu Chief Minister K. Palaniswami and Deputy Chief Minister O. Panneerselvam condemned the mass killings by suicide bombers in Sri Lanka on Sunday.
In a joint statement issued in Chennai, the two leaders said: "We condemn the attack on the churches where large number of Tamil Christians live."
They said the attack in a place where innocent people had congregated to pray to God was shocking.
PMK founder S. Ramadoss also expressed his shock.
Eight explosions on Sunday rocked three churches and three hotels frequented by tourists in Sri Lanka on Easter Sunday morning, killing at least 160 people and injuring over 450 others, in one of the deadliest blasts in the island nation's history.