1.5 L Engine 6 gears 1,3,5 and Reverse gears Not engaging.

I purchased new ertiga VDI 1.5 engine July 4, 2019, AIE Cars Nellankarai Chennai. within 20 days gear selector cable 1,3,5 gears not engaging 2,4,6 only working. I complained Maruti regional office they told the gear cable is a problem it replaced under warranty and changed the gear cable and returned to 04/08/2019. Again within 25 days (1/09/2019) that same problem gear not engaging. again I escalate the mail to regional territory manager he told first time that cable replaced by the dealer (AIE CARS) this time I replaced in our Maruti main technician and check the monitor to full vehicle checkup and reading also send to our head office. after changing the cable assy shift & select cont and clip sel cable replaced in our vehicle. very worst Maruti showroom in Chennai AIE Cars.