BMC — over charging

I live in arera colony e-2,i travel by SR-6 not daily but twice in week(up-down) on today u'r bus conducto name-mod uvaish,mp04pa1474,takes 15 rs in place of 12 rs,n says bad m le lena.when i asked again in my last stop they told leave it sir many times n returns me 1 rs coin.but when i forced they are ready to fight.time 11:19 min.
I request plese take actions of condecture n one more condector with that.
I want toknow BMC not give proper payments of those n why tey figh for 1 or 2 rs...!