Curfew was imposed in parts of Gwalior in Madhya Pradesh following clashes during a tazia procession on Saturday which left over a dozen, including policemen injured, the police said.
Gwalior district magistrate Sanjay Goel said the situation was tense but under control. The people had been asked to remain indoors and avoid rumour mongering, he said.
Superintendent of police Harinarayanchari Mishra said an STF battalion and extra police force had been deployed at Loha Mandi and Sewa Nagar to avoid any backlash.
Local residents said that members of the right wing activists obstructed a tazia procession and allegedly threw gulal (colours) on the mourners when they passed through the main road near Sewa Nagar and Loha Mandi. The road connects to Kila Gate and Sagar Tal, which is earmarked for immersion of Goddess Durga idols.
Quoting locals, the police said the act appeared to be a fallout of a Thursday incident in which a group of minority community had allegedly caused some trouble during a Durga procession.
However, the situation on Saturday snowballed into a violent clash in which both sides attacked each other, vandalised vehicles, indulged in stone-pelting and damaged a State Bank of India ATM. The mobs attacked the police when they resorted to a lathicharge to disperse them.
Gwalior city superintendent of police (CSP) D B S Bhadoria, town inspector (TI) Amar Singh Sikarwar and a few policemen, including others, sustained injuries.
Bharatiya Janata Party district minority cell functionary Afzal Beg, who was present on the spot, blamed a Hindu fringe group for rioting and destroying communal harmony in the city.