At least two people have been killed in an explosion in one of India's most popular Muslim shrines west of the capital, Delhi, officials say.
One of the survivors is treated in hospital
It took place in the city of Ajmer, the site of a major Sufi shrine, as thousands of worshippers gathered for prayers during Ramadan.
Officials say at least 14 people have been injured, some seriously.
It is not clear what caused the explosion. Police have been deployed at the site.
The blast happened on one of the holiest days in the Muslim calendar, just days before the festival of Eid, which marks the end of the holy month of Ramadan.
Thousands of worshippers had gathered at the tomb of a 20th century Sufi saint in Ajmer, in the state of Rajasthan - one of the most important pilgrimage sites in South Asia, which attracts Muslims as well as people of other faiths.
Eyewitnesses say the blast took place as the worshippers were milling around the white marble tomb.
Some say that an explosive was placed inside a bag or a box. The BBC's Sanjoy Majumder in Delhi says that this has not been independently verified.
The injured have been taken to nearby hospitals and police have secured the area. Officials have issued appeals asking people to remain calm.