Went to Sajjad Motors Jaild Road last Saturday for my Santro's maintenance.
As it has done 108,000 Kim’s so I changed Timing Belt, Timing Bearing, Fan Belt, A/C Belt, Front Break pads, Break Service, Engine Oil, Oil Filter, Air Filter and Tuning and It cost 10K Rupees
Good thing is its like brand new again
Anyways I asked them to check the "Check Engine" light and feature as I never seen this light in my car from day 1. They've confirmed that in this model (2003 Nov) this feature is not present.