The former middle-distance runner, who had got a relay gold at the Doha 2006 Asiad, on Thursday rejoined as a ticket collector in the station.
"I feel relieved after the trauma which I had gone through. I am thankful to the Railways for reinstating me...I had appealed to get back the job on Aug 8 and I got the order immediately. I joined work yesterday," Pinki said in Kolkata on Thursday.
She said her co-workers at the Railways were supportive and showing tremendous respect and that many people were taking pictures with her.
An Eastern Railway official said the suspension was revoked after she submitted the copy of her bail order.
"As per the central government rule, one is deemed to be suspended after 48 hours of custody. But after getting a bail, she appealed and the suspension was revoked," he said.