Ahmad Bhai .. thanks for inviting me here ..
At 20,000 km, they told me I needed to replace the plugs ... I checked the condition and told them to just clean them. I replaced them later at 25,000 km service.
I changed oil + oil filter and air filter. Brakes pads and discs were removed and cleaned. Coolant and washer fluids were checked. Undercarriage nuts and bolts were tightened. Doors and trunks were checked for proper opening and closing. Battery fluid was checked.
The photos of my 20K service can be seen in this link
https://www.pakwheels.com/forums/members-member-rides/160552-project-laadli-my-toyota-corolla-gli-2010-a-3#post2683168
However, as per the schedule posted above, they did not do any balancing or alignment. I had got the balancing done few days back when I got the TPMS installed.
If I recall correctly, their bill for labour was Rs 1800 and I got 20% discount when I showed them the SMS that Toyota Islamabad Motors sends to the regular customers ... plus some percent off on parts and lubricants...
I asked them not to rotate the tires as I had done it myself few days back when I installed the TPMS
Since you are in Rawalpindi, I think you should better come to Toyota Islamabad Motors near Aabpara.