Maruti Suzuki India — poor service by service center.

dear, sir / mam.
i am lalit from mumbai i brought swift vdi on 3rd feb 2009 from excel auto in kalina. i am not happy about the it that i have told service center people about engine make more loud sound as they say they check and tell today it is the same. i told the company about ths on my 3rd service wen i gave my car for servicing they it will retified but it is not done till today now car makes more noise. i would like to bring to your notice about ths so pls look in ths matter. and do the needfull and if ths the kind of poor service is provided after paying them high amount money then i thk a roadside mechanic can do a much more better job for us. my car has done 1,500 km pluf after my 3rd service i am very disopinted about it.
pls look in ths matter and get it done as soon as possible.
car no :- mh 02 bj 3369
km till date :- 11,500 km.
thanking you.
lalit suthar
+91 [protected]