I have gone through the posted video and i would very much like to help you with the subtitles. Being proficient in both Urdu and English languages i can assure the quality of the subtitles with emphasis on the viewers comfort to be able to follow the video and subtitled instructions smoothly.
The subtitles provided will be in .srt file or any other relevant format so you would not have to go through any further effort to integrate them with the videos.
I would be charging 1000 INR per video with about an average of 5 videos per day. Considering you have about 308 videos on your channel, the whole project can be completed in 2 months.
For your ease in assessment and evaluation of my work, i can also provide a free sample of subtitles for any video of your choice.
furthermore your suggestions, request to changes and any criticism will be taken positively.
Looking forward to working with you
Best,
Rameez