Sorry I don't have the exact location of the shop (it's a fluid change shop plus a basic workshop) where I changed it from (or the phone number) and I have forgotten the name as well - didn't bother since they are so near to where I live:P
Anyway, getting there is straightforward. Very near (just two or three shops further down the same road) to this fluid change shop, there is Jameel workshop which is quite famous in the area:
https://goo.gl/maps/EQq1E2ubPLJJ1DESA
Just reach here, and in between this and the fluid change shop, there is a carpenter shop and a battery shop (on the map I have shared, the shop is between Naeem trading company and Jameel workshop). You can't miss it! They are open after 10 am until at least 7 pm. Should also tell you that you will need to bring your own brake fluid.
If you still have a problem, I can get their contact number and name, no problem.