The Congress Saturday said those who took bribe to ensure the promotion of a railway official will be punished.
"Whoever is the culprit will be punished," Congress spokesperson Rashid Alvi told reporters.
The (CBI Saturday arrested Bansal's nephew Vijay Singla and three others in Chandigarh for allegedly taking a bribe from the railway official. A total of six people have been arrested.
Singla allegedly took Rs.90 lakh to ensure the promotion of railway official Mahesh Kumar.
