Sorry to hear about the incident but this compression ratio is next to impossible for any fine running diesel engine. For a Swift/Ritz diesel, it should be 17.2:1 for a perfectly running engine.
Anything less than 1:16(even 1:15 at times) is improper for a diesel engine and proves that your piston/piston rings have gone wrong as the proper compression is not being attained.
White smoke shows that engine oil is being burnt - piston rings are dead for sure. But why so early? Improper servicing, improper lubrication or service delays can be the reasons. One more reason: Running A/C in parked car for long hours(even 1 hour a day can kill your engine).
Go and get the rings replaced - this is the only remedy.
The car won't give proper mileage as the fuel is not being properly burnt. In fact this time your car is emitting fuel also from its tailpipe.
My intention is to show you the true image(even if you feel bad) but your engine is on the verge of dying and hence you should get it repaired(major repair) as soon as possible else the issue will grow higher.
Dear TSIVipul
Its not the ratio which I shared ratio is almost same which shall be ~= 1:1:1:1.
because compression pressure is what I shared which in 12.5,13,13,13.
No Knocking , No Unusual Vibrations, No improper idling.
Its not eating up oil , even after 9000 kilometers of drive after engine oil change , oil dipstick shows its near to full still. So no issue with engine oil, coolant is all fine.
I am waiting for it to complete 10 K and will get EGR Valve cleaning done with a new Diesel Filter and stuff.
I have also read so many blogs which say 80 percent of people driving TDI Engines are facing the same issue even with new cars and if its not consuming oil it shall be fine according to Volkswagen engineers.
Let me know if I am wrong.