Skoda India — battery drains in 2 days... service centre not able to diagnose

Address:

Chennai, Tamil Nadu, 600045

I bought this skoda rapid in 2012 (Diesel), i had been complaining about the battery getting drained from the begining, but the team is not able to rectify the same. Everytime i have to jump start the vechile (If not driven the car for 2 days).

Is there a solution??? Currently my car is in guindy industrial estate chennai show room, handled by advisor "ashok".