I am not sure that he is still there but he makes leatherette seat covers very well and I got for my Corolla in 2005 which were in great shape (except drivers seat obviously which had very small chipping off ) till 2015 when I sold the car. The color and fitting were both perfect and gave quality look and I could clean them with just a soapy rag.
Have a look. He had a shop besides Toyota Islalmabad, Aabpara (main suharwardy road side). There is a tyre shop and an accessories/decoration shop and in between them there is a small corridor and his shop is inside.
On an other note I have stopped using seat covers. Both of my cars are without seat covers since day 1. I may put covers on them once I use up the original seats fully and once they start losing shape and fading sets in. I enjoy the original fabric seats so much and in case of any spill or spot, I just use Astonish upholstery, one spray and all marks are gone.
I hardly enjoyed the original seats of my previous Corolla and the next owner still have those seat covers, I saw recently. So what is the point of preserving them for whom and after 10-15 years even if the seat covers are removed the original seats would still come out worn out and faded:)