Authorities have imposed a curfew in the southern city of Hyderabad, home to global IT giants such as Google and Microsoft, after three days of inter-religious clashes.
Over 75 people have been injured and one killed, reports the BBC, in clashes between Muslims and Hindus which began in the old city area on Saturday night.
Hyderabad, dubbed 'Cyberabad', a city of 4 million people, is the undisputed IT hub of India, as well as a biotech and pharmaceutical centre.
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One person was reportedly stabbed to death by a mob on Monday, in the latest flaring of an ongoing trend of religious violence in the world's largest democracy.
Police say over 100 have been arrested, with the clashes beginning with protests over the erecting of religious flags near a place of worship.
Since the 90s, scores of computer software companies, consultancies and outsourcing centres for the world's service providers have made Hyderabad their home, including a number of Fortune 500 companies.
Trial over 2002 massacres goes ahead
In 2002, scores of people were killed in inter-religious violence.
A Hindu nationalist leader accused of failing to halt deadly anti-Muslim riots in India in 2002 said on Sunday that he had fully cooperated with a panel investigating the violence.
Narendra Modi, chief minister of Gujarat state, completed nine hours of questioning into his alleged role in the riots during which about 2,000 Muslims died.
"I have fulfilled my words given to the people of the country. Nobody is above the Indian constitution and law," Modi told reporters afterwards. "We spoke in detail. I have been told by the investigators that my work is over."
