Mukherjee said the Congress was the only opposition party capable of taking on the CPI-M and its 'hired musclemen'.
'We won't concede even an inch of space to the CPI-M without a fight,' Mukherjee said.
Eight Congress legislators were injured last month when they were attacked allegedly by armed CPI-M cadres at Dhanyarukhi village near Mangalkot.
A 14-member Congress delegation led by Bhuinya had entered Dhanyarukhi village for distributing relief to party supporters whose houses had been burnt after the murder of CPI-M district committee member Falguni Mukherjee.