Maharashtra State Road Transport Corporation [Msrtc] — different charges taken for swargate to vashi and vashi to swargate

Address:

Pune, Maharashtra, 411030

On 13th feb 2019, i have traveled swargate to vashi and same day return journey by shivneri bus, during twowards, vashi charged rupees 540/- and return journey same bus charged me rupees 480/-.

Can you explain me why this difference for same journey in same bus.

There were same bus, and same staff on duty.

Attached is the image of bus ticket.

Please refund me my more 60 rupees charged.

Regards,
Prashant