Hey !
There is no need to be an expert in Physics subject to study Textile Engineering.
Textile Engineering combines the principles of engineering with specific knowledge of textile equipment and processes.
Here are the core subjects in Textile Engineering :
1) Textile Fibre
2) Fabric Formation
3) Textile Testing & Instruments
4) Computer Applications in Textiles
5) Information Technology in Textile
10+2 pass  out with minimum 50% aggregate marks in physics, chemistry and Mathematics is eligible for B.Tech Textile Engineering. Tuition fee for B.Tech Textile Engineering may range from 30,000 to 1,50,000 rupees. B.Tech Textile Engineering graduate can expect a salary between Rs. 15,000 to 25,000 in a private sector. Top colleges offering Textile Engineering are :
1) BE/B.Tech in Delhi-NCR
2) BE/B.Tech in Maharashtra
3) BE/B.Tech in Chennai
4) BE/B.Tech in Uttar Pradesh
5) BE/B.Tech in Telangana
Hope this helps
All the best !