It also threatened to launch a countrywide agitation over the issues of cow slaughter, the Ganga cleaning and building of a Ram temple in Ayodhya.
The parishad, which held a meeting here today, asked the Centre to give proper representation to saints in the Namami Gange project which is meant to free the river of pollution.
Demanding more stringent laws for protection of cows through a resolution adopted at the meeting, the parishad said it would not tolerate any flip-flop on these issues.
The meeting, which was chaired by parishad chairman Mahanth Narendra Giri, gave the state government two months' ultimatum to exempt ashrams, dharmashalas and temples from paying commercial tax.