DO NOT BUY A CNG SWIFT

I had a CNG kit fitted on my new swift 2015 model from Maruti itself The car has been giving continuous problems from the day of delivery Every 15 days its been in out of the service centre Its not even 3 months and the car is not performing whether on CNG or petrol So after paying 720000 on the car I am stuck with it. Every time they give it to me after "fixing" the issue, the same problem starts after few days.I got the car back yesterday saying the issue is fixed, today morning as I drove the car it did not switch to cng for atleast 40 minutes of driving, pick up dropped significantly. As usual the MARUTI technicians picked it up and took it back to the service centre to fix the issue for the 7th time.My problem here is it is goin to happen again , the same way it did all these times and I'm stuck with this 7lakh piece of crap!