Yes there is dip stick around radiator, same like regular engine oil stick.
I went to a normal oil change shop near to my home on Multan road, and they charged Rs 700 for labor charges and Rs 200 for silicon to seal chamber. They were also mentioning "jain" will need to change depending on condition but in my case "jain" was made of iron so they fixed it back without changing it, they were saying to charge around Rs 600 for new "jain".