Maruti Suzuki India — changing color I wants after booking

Address:

600102

Sir
I have booked the maruthi celirio zxi amt (O) of silver color on 1-9-2017 with dealer popular vehicles and services pvt. Ltd. At anna nagar east, chennai-600102.
But after one month today[protected] the dealer told that the silver color is not available and only possible to give red color. This is very bad, one moth before i have booked for it but now they told this.

I need only silver color only, please necessary action to get my requirement.

Booking number 007249
Name n rajaram
Car : maruthi celirio zxi amt (O) silver color