[Resolved]  Maruti Suzuki Swift VXi — Cliking sound from the rear left side in Brand new car from Day 1

I had purchased a brand new Maruti Suzuki Swift VXI from Magic Auto Karol Bagh on 30/12/2008.From the day one I am experiencing an irritating clicking sound from the rear left side of the car. For which I took my car first to the concerned dealer on 3/01/2009.I was told that hook of rear seat was broken. They replaced it but it did not help in removing that irritating clicking sound.
Some friends told me to take up the car to Maruti Service Centre(Company owned Workshop at Naraina).I visited the workshop on 16/01/2009, the engineer after taking trial found that there is some defect in the rear left side safety belt. They replaced the whole unit of the belt. For distance up to my home that problem seemed to get solved .But unfortunately in the morning on my way to office I experience the same irritating clicking sound, which not only frustrated me but shaken my belief and confidence over Maruti Suzuki customer care services. I had sent this feedback to Mr. Pankaj Narula on a business reply envelop provided to me. But so far no reply has been received from that end.
Again I visited Maruti Service Centre (Company owned Workshop at Naraina) on 22/01/2009.After spending full day at the workshop from 10 am to 7 pm the problem was not at all diagnosed by the engineers available there. After facing such a harassment and mental tortture I took my car back to my home without getting the problem solved.
I feel very disheartened that within just a span of 15 days and mileage of just 200 Km I am facing such problems that even so called expert from your owned workshop could not able to even diagnose the problem in my car. I feel deceived that may be I was sold a defective car by the dealer.
I wish & request to Mr Pankaj Narula CGM(Service) Maruti Suzuki to please look into the matter and help me out.
Thanks