Bajaj Auto — engine noise complaint

I bought a new bike bajaj platina 2018 january model from balamuruga bajaj show room at madurai.
My new platina bike, ride continuously only 10 min in 40km speed rise some different noise continously
Already consult with balamuruga bajaj show room service center, after the first service. Now also noise level is happening and also service center response also very low average.
So now what i do, kindly guide me.

Here with attached my bike invoice bill and service bill for further details.

I expect positive information from you, as soon as possible.

Details
Total km driven -650 km
Model - bajaj paltina
Purchase date - 29.01.2018