MTC Group — non mentioning of initial stops in bus pass

Address:

Chennai, Tamil Nadu

I used to travel every day from my school (Mrc nagar) to saidapet with my bus pass. Since there is no direct bus i prefer to go to adyar depot and from their i would travel to saidapet police station.
Every day i when i travel i use my bus pass but today (31/01/2019) on 47a (Tn07ah1454) the bus conductor asked me to purchase a ticket even when i had my pass. Also he argued that adyar depot is not mentioned. I also asked him that mrc nagar is also not mentioned in it. Is it my fault regarding the mentioning about mrc nagar or adyar depot or is it the conductor's tricks to purchase a ticket by me???
Please kindly check this problem