Maharashtra State Road Transport Corporation [Msrtc] — Misbehavior of conductor

Address:

Pune, Maharashtra, 411015

I booked on-line msrtc bus reservation from pune to shirdi for date of journey on 23-2-17. 4 seats with 2 sr citizens. My ticket no# pnem0007025.
Bus no# mh14bi3409
Conductor name birajdar d.
Conductor mobile no [protected].
As per msrtc online faq only the photo id card needs to be shown for verification. My parents showed their pan card issued by the govt of india, the conductor did not accept the pan card as been issued from the different state in india, and he charged extra and i had to pay full ticket fare.
I have both the tickets as evidence.
I need justice why pan card is not accepted for id proof in maharashtra state transport corporation