Ayudha Pooja Offer: 7.5% Back on Your Loyalty Card
This Ayudha Pooja, 7.5% of the labour charge on your bill comes back to you as credit on your GM Loyalty Card. The usual rate is 5%. It is our thank you for trusting us with your car.
Reviewed by G.M. Manigandan, founder and lead technician · Last reviewed

What you get
Every time you pay a GM bill, part of the labour charge goes back onto your Loyalty Card as credit. Normally that is 5%. For bills dated 15 October to 31 October 2026, we raise it to 7.5%.
The credit is worked out on the labour charge before GST. Once the bill is fully paid, the credit is added to your card overnight.
How it works
- Book a free 30-point checkup.
- We give you a written estimate.
- You approve it.
- We do the work.
- You pay the bill.
- The credit lands on your card overnight.
Using your credit
Your credit is used on your next visit. Our staff apply it at billing, so just tell us at the counter. It stays valid for 6 months from the day you earn it. It is never paid out as cash.
Every customer already has a card. Your card number is printed on your GM bill. To see your balance, go to my.gmcaracservice.com/card and enter your phone number and card number.
The small print, in plain words
- Private cars only. Fleet and business accounts are not included.
- Parts earn nothing. Only the labour charge counts.
- If the bill has a discount, the labour it is earned on goes down by that discount.
- The bill must be dated 15 October to 31 October 2026 and fully paid.
- The offer applies at both our workshops, Ambattur and Surapet.
Both our workshops, Ambattur and Surapet, are closed on Monday 19 October for Ayudha Pooja, and on Sundays. We are open again on Tuesday 20 October.
Four steps, in this order, every time
Diagnosis-first is the whole method: measure, write it down, then price it. It is also why every job, gas filling included, is quoted in writing after the checkup.
We test before we quote
The free 30-point A/C and electrical checkup runs first, about 15 minutes, with a written report of what was measured.
You get the estimate in writing
The report says what was found. Gas filling, like everything else, is quoted in writing after the checkup, and nothing starts until you approve it.
No work starts until you approve
Nothing is opened up or replaced before you say yes to the estimate. If the diagnosis changes the scope, you hear about it first.
Repaired, then checked again
The approved work is done and the car is checked again before handover.
Frequently asked questions
How much credit will I get this Ayudha Pooja?
7.5% of the labour charge on your bill, before GST. The normal rate is 5%. If the bill carries a discount, the labour charge the credit is earned on goes down by that discount.
Which bills qualify, and when does the credit arrive?
Bills dated 15 October to 31 October 2026. The credit is added to your GM Loyalty Card overnight, once the bill is fully paid. Both our workshops, Ambattur and Surapet, are closed on Monday 19 October for Ayudha Pooja and on Sundays, and open again on Tuesday 20 October.
How do I use the credit?
On your next visit. Our staff apply it at billing. It stays valid for 6 months from the day you earn it, and it is never paid out as cash.
Do parts, fleet cars or business accounts earn the credit?
No. Parts earn nothing, only the labour charge counts. The offer is for private cars only, so fleet and business accounts are not included.
Where is my card number, and how do I check my balance?
Every customer already has a card. The card number is printed on your GM bill. To check your balance, go to https://my.gmcaracservice.com/card and enter your phone number and card number.
Related pages and areas
Tell us what the car is doing
We will call you back to confirm a slot. Nothing is charged and nothing is booked until we have spoken.
Customer Service · Individual car owners. Mon–Sat 10:00 AM – 8:00 PM, Sunday closed. Prefer not to call? The form takes a minute.

Illustrative image. Not a photograph of GM premises, staff or a customer vehicle.