Briefing media persons after a meeting of Left Front partners, the combine's chairman Biman Bose also sought a discussion in parliament on the declassification issue.

Mr Bose claimed that the hitherto secret files brought into the public domain by the state's Mamata Banerjee government have not shed any new light on Netaji's mysterious disappearance.

"So, we feel the central government should declassify the files related to Netaji so as to solve the mystery relating to what happened to him after August, 1945."

In September, Ms Banerjee had declassified 64 files related to the revolutionary leader.

Mr Bose said the Left Front would celebrate Netaji's birthday on January 23 as "Deshprem Divas" (Patriotism Day) when a rally would be taken out from central Kolkata's Subodh Mallick Square to the leader's statue on Indira Gandhi Sarani.