Maruti Suzuki India — poor servicing

Address:

Patna, Bihar, 800025

I visited vau workshop, patna on 12.11.2017 and servicing was done vide invoice no.001/bc/1700/1856 amounting to rs.3264/-. I find that after servicing mileage has been reduced and not smooth running. It was better in condition before servicing. Smell is also blowing. I got a call from vau for my feedback and i lodged a complaint in this regard but they disconnect phone and no any action at their end initiated. My alto car is kept in my garage due to poor performance. I am very much disappointed and requested you to take suitable action against workshop and solve problem. If not action taken i shall be compelled to proceed in appropriate forum.