Bengal Chief Minister Mamata Banerjee today signalled her disapproval at Tamil Nadu minister Udhyanidhi Stalin over his "Sanatana Dharma" remarks, which have set off a political maelstrom ahead of a string of state elections and drawn multiple BJP barbs. It also appears to have put Opposition bloc INDIA in a dilemma, calling upon diplomatic skills of the leaders to preserve unity. Ms Banerjee, who has maintained silence for over a day, spoke up after Congress comments on the issue.