Thanks to all for giving suggestions and sparing your valuable time.
Yesterday the mechanic delivered my car and I drove it almost for 130 Kms and every thing was perfect. Again I m enjoying the Bold Ride. He didn't changed the Turbo as he didnt notice any kind of play in it and during my drive I found turbo working perfectly.
Final Bill was 29500 INR almost 1/4th as per the estimate given by FASS
He suggested me to use 5W30 grade engine oil and get the air filter cleaned at every 1500 to 2000 kms.