"West Bengal CM Mamata Banerjee has used extremely low-grade language. Mahakumbh is a fest of great faith, reverence and trust. Making such a comment is insulting Hindu Dharma. Her remark shows her mentality. This is the reason why people are losing their faith in organisations like hers. I hope people will teach more lessons to them in the future. I don't understand why Congress and its accompanying people have objections with Hindu Dharma. May the almighty give them wisdom and she should apologise," CM Yadav told ANI.