The Chinese torque wrench on tools bazar is overpriced and has more than 3% error. You can get the same in market for atleast 2k cheaper.
I just recently bought a torque wrench to service my own cars. It's a Made in Taiwan Click-type Torque wrench with 1/2" drive and 20-150 ft-lbs rating. Its from a company called Jonnesway. Comes with its own calibration certificate and lifetime warranty for craftsmanship defects. The fit and finish is really nice compared to the Chinese ones.
If you are in Karachi I can hook you up with the shop owner. Its a very old shop in Saddar and I've seen all types of expensive German, American and Taiwanese tools with him. He says he also supplies professional tools to Indus Motors.