Bhilawar and Surat
Ludhiana, Solapur.
Surat in Gujarat and Bhilwara in Rajasthan are considered as hub row garment or ready to stitch garment.
Ludhiana in Punjab and Solapur in Maharastra are popularly known for ready to wear garments. They are specially known for school uniforms.
Ludhiana majorly caters north India and north East India and Solapur caters central, west and south India.
Although Ludhiana is considered as biggest producer of ready to wear garment but Solapur is shapping up as Garment industry with major focus on school uniforms. Solapur is well connected to major cities such as Pune, Mumbai and Hyderabad. The production cost is almost same or a bit less then Ludhiana as mostly works are from southern region. For raw material or ready to stitch garment one can easily find agents or vendors selling raw material in Solapur.
Thanks
Hope my answers help you