Mumbai, Feb 5: Supporters of Raj Thackeray-led Maharashtra Navnirman Sena (MNS) have attacked Congress leader Sanjay Nirupam’s office on Today afternoon.

Several MNS supporters threw stones on Nirupam’s office at Andheri, just few hours before he was to hold a protest demonstration in front of Raj Thackeray’s house against the MNS-led violence in the city.

The police resorted to lathi-charge in the area immediately after the attack by MNS supporters.

MNS activists has clashed yesterday with SP workers, attacked two theatres screening Bhojpuri films and assaulted north Indian taxi drivers and vendors.

"Today, the situation in many parts of Mumbai, like Worli is not good, we drivers do not go to those places even if offered a good deal," said Sarju Mahto, a taxi driver.

Maharashtra Chief Minister Vilasrao Deshmukh has said that the State police have arrested 75 supporters of the Maharashtra Navnirman Sena (MNS) and the Samajwadi Party.

"Police have arrested 25 people in Mumbai and around 50 people in neighbouring Thane," said Vilasrao Deshmukh.

MNS chief Raj Thackeray's has reportedly made derogatory remarks against 'Chhat Puja' saying it was a "drama."

Late on Sunday night, Samajwadi Party (SP) general secretary Amar Singh lodged a case against Raj Thackeray, accusing him of encouraging attacks on North Indians and of issuing personal threats against him.

Prior to the United National Progressive Alliance (UNPA) rally at the Shivaji Park on Sunday, MNS activists clashed with SP supporters, close to the venue resulting in detention of the violent mob.

Supporters of both the parties allegedly assembled outside the Plaza cinema in Dadar and indulged in stone pelting following Rajya Sabha MP and SP leader Jaya Bachchan's reaction to Raj Thackeray's statement against her husband, Amitabh Bachchan.

The Raj Thackeray-led MNS has been targeting north Indian migrants living in the metropolis and taken objection to celebrations like Chhath pooja and Uttar Pradesh Diwas in Maharashtra. The party is promoting the view that "when in Maharashtra, behave like Maharashtrians. (ANI)