Tension gripped the city on Sunday as soon as news regarding firing on Sant Niranjan Dass, Head of Dera Sachkhand Ballan, and his supporters in Vienna, Austria reached the area.
Followers of the sect started gathering the Buta Mandi locality in protest against the firing incident and torched a truck parked in the area, police said.
Senior Superintendent of Police R K Jaiswal said policemen have been deployed at sensitive points to check any untoward incident.
At least 11 people were injured, nine of them seriously when two groups of Sikh worshippers clashed with knives and handgun at a gurdwara in Vienna on Sunday, Vienna police said.
The fight erupted following a dispute over the sermon given by a priest from Shri Guru Ravidas Sabha.
At least six men, one wielding a gun and the others knives, attacked the preacher and others.