Amritsar, March 22 -- Four buses of Himachal Pradesh Transport Corporation (HRTC) were damaged and defaced with 'Khalistan' slogans on Friday night by unknown persons at Shaheed Madan Lal Dhingra Inter-State Bus Terminal (ISBT) in Amritsar.

The vandalism was noticed by the locals and staff of the buses on Saturday morning. Their windscreens were broken and the word 'Khalistan' was found written in Punjabi on vehicles' front and sides.

After being informed, the police reached the ISBT to take stock of situation. The slogans were removed and an investigation was initiated after registering an FIR against unknown persons.

The affected buses include those plying on the Amritsar-Bilaspur, Amritsar-Sujanpur, and Amritsar-Jwala Ji routes. "We...