Srinagar  - More than 50 people were injured - including 13 in a grenade attack by Muslim militants - in India-administered Kashmir on Wednesday during protests by Hindus angry over officials revoking a land transfer to a popular Hindu pilgrimage, police said.

Jammu, a Hindu majority region in the mostly Muslim state, has seen violent protests over the past fortnight, first by Muslims against the land transfer and later by Hindus angry that the order was withdrawn.

Hindu nationalist Bharatiya Janata Party has called for a nation- wide shutdown on July 3 to protest the state government's decision of revoking an order transferring 40 hectares of forest land to a trust that organizes the annual pilgrimage to the Amarnath cave.

Local police said curfew was imposed in the Bhaderwah and Samba and the army staged flag marches in the two towns after 27 people were injured in communal violence between the two groups.

In another incident, thirteen Hindus were injured after suspected Muslim militants attacked their procession in Bhaderwah town.

"Fifteen policemen and a paramilitary constable were also injured in the violence between a mob of angry protestors belonging to the BJP," a local police officer said.

"Additional police forces have been dispatched to sensitive areas in Jammu as violent protests have spread and communal clashes are taking place despite the curfew," he added.

Some protests were also reported from other areas but there was no violence as markets, business establishments and schools remained closed for the third day in the region.

The unrest against the government's transfer of land to the Shri Amarnath Shrine Board, a trust that organizes the Amarnath pilgrimage, began two weeks ago in the Muslim-dominated Kashmir valley. The violence claimed five lives and injured over 500 people.

Muslim separatist leaders who initially called for the protests said the decision was part of a conspiracy to settle non-Muslims in the region with the aim of altering the demographic character of the state.

Kashmir, a picturesque region, has been hit by protracted violence and bloodshed since a separatist revolt peaked in the late 1980s.

According to government data, more than 40,000 people - civilians, militants and security forces - have been killed in India- administered Kashmir since the 1990s. (dpa)