State Transport Minister G S Bali said in order to avail the discount, the passengers need to get 'smart cards' available in select bus stands like Dharamshala, Shimla and Manali.
The benefit was earlier reserved for non-AC buses run by HRTC.
"Persons below the age of 60 years shall get concession of 10 per cent while those above it shall get a concession of 20 per cent on showing smart cards to conductors," Bali said.
Shimla-Katra-Dharamshala-Delhi and Shimla-Hardwar.
He said the imported buses shall be delivered to HRTC soon.
"These buses have been equipped with GPS, CCTV and passengers information system and the government is trying to connect all the pilgrimage and historic places of the state with major towns by luxury bus services," Bali added.