Lanka soy, raigam, Pyramid Wilmar companies buy soy flour from same indian suppliers such as Ruchi, Vippy, and Sonic
Only thing is Lanka soy raw material and finished goods stores, extruder machines, dryers, factory floor, SOPs, etc are better than raigam and fortune according to my experience.
Usually freelan and delmege buy soya meat nuggets in bulk from others and repack themselves with their name.