Separatists in Indian-ruled Kashmir said they would go ahead with a rally on Monday after the government banned public gatherings for a month.
The last two months have seen some of the biggest pro-independence protests since a revolt against Indian rule broke out in the region in 1989.
The demonstrations were sparked by a decision to grant land for shelters for Hindu pilgrims travelling to mostly-Muslim Kashmir, one of the world's most militarised zones. About 40 protesters have been killed by government forces and more than 1,000 injured.
The Jammu-Kashmir Coordination Committee, a new alliance of Muslim separatists and representatives of businesses and lawyers, plans to address a huge rally on Monday in Lal Chowk (Red Square) in the heart of Srinagar, Kashmir's summer capital.
The government announced in a statement on Saturday that it was banning public meetings of five or more people for one month.
But separatists said they would defy the ban, and appealed to people to join the rally.
"Come what may, we will defy all the restrictions to make Monday's rally a grand success," said Yasin Malik, a senior separatist leader.
Another separatist leader, Syed Ali Shah Geelani, was placed under house arrest ahead of the demonstration, police said.
Violence involving Indian troops and separatist guerrillas has declined significantly since India and Pakistan, which both claim the region, began a slow-moving peace process in 2004.