The Foreign Ministry summoned the Indian Ambassador to express Pakistan's indignation over the attack and to demand that India immediately restore the mosque. The Government also said it would appeal to the United Nations and the Organization of the Islamic Conference to impress on India the need to protect Muslims' rights. Prime Minister P. V. Narasimha Rao of India has expressed sorrow over the destruction and pledged to rebuild the temple. But students from Quaid-i-Azam University gathered at the Indian Embassy and burnt an effigy of Mr. Rao. "The only solution for Hindus is a holy war!" the students chanted. Less Than 2% of Population

About one and a half million Hindus live in Pakistan, less than 2 percent of the population of 120 million. About 97 percent are Muslim.

In Lahore, Muslims used a bulldozer, hammers and hands to demolish the Jain Mandar temple near Punjab University. The police did not intervene. Nor did they act when a crowd stormed the Air-India office, dragged furniture into the street and set it on fire. Because of religious and border disputes, relations between India and Pakistan have been hostile since the two nations were created in 1947 by the partitioning of Britain's former colony on the subcontinent. Tensions have deteriorated since the recent killings of two Pakistanis and the beating of a Pakistani diplomat by the Indian police. Attacks Across the South

Today protesters attacked five temples in Karachi and hurled rocks and set fire to 25 temples in towns across the southern province of Sind, where 95 percent of the Hindus in Pakistan live. In Sukkur, a town in Sind, the police fired tear gas to disperse a crowd that attacked shops owned by Hindus.

The police used tear gas to break up a crowd of 200 who hurled stones at a Hindu temple and broke down the doors of Hindu houses in the western city of Quetta. Several people were arrested and hurt, and a large police contingent was posted in the district to protect Hindus.