Two more persons were given identical punishment on the same charge by the Seventh Judicial Magistate's Court in Asansol.
The judge suspended the sentence for a period of three months on a petition by Ali's counsel Jagadindu Ganguly to enable the petitioner to move a higher court for regular bail.
According to court sources, Ali was accused of stealing iron scraps belonging to Railway in 1995.
The counsel of Ali said they would move a higher court against the trial court verdict.
"I am yet to receive the court order. First let me go through it and then only I can comment on this matter," Banerjee told PTI.
' Trinamool Congress secretary-general Partha Chatterjee too said that he would comment only after "knowing the matter properly".
"When the incident happened in mid-nineties Sohrab Ali then was a leader of an ally of the ruling Left Front. Let us go through the court order first and then only I will comment," Chatterjee said.
