As put you may find more info in another forum(s) on this site such as the 'Project' forums of the models that use the same 1.0 TSI engine (what differences there might be with India engines I don't know. You may already know and do what follows but many that have or want their cars tuned don't. There is no such thing really as Stage 1, 2 or more though there might be general agreement of what they might consist of there could be different interpretations by different people and tuners and in different regions and counties. As stated you also need to find good reliable tuners in India that know your car make, model and engine to see what they do and use and what results they usually get. First part of any tuning is having the whole car in good working order and the whole call fully and properly serviced, maintained and repaired thoroughly and in timely manner. To have all systems, components and parts in good working order. Most important are brakes, suspension, steering (all three include tyres), safety electrics (lights, horn, wiper, etc.) after those is transmission and engine. Once all that is sorted you can move on to stage tuning but bear in mind as with everything on the car further tuning can/will bring further compromises, such as if tuned for top end performance you can lose some bottom and middle performance that makes less efficiency of normal everyday driving. Not all "improvements" and "upgrades" are overall improvements or improvements at all, things have to be balanced. This is why you need a good reliable tuner that knows what they are doing with your particular car make, model and engine. Next bit many men don't like - after full and proper, thorough, timely servicing, maintenance and repair is something that is transferable to future cars, further driver training. A good driver can get more out of a standard or tuned cars. I hope that helps.