R.K. Bio Technologies Private Limited · Rakam Estates Private Limited · R.K. Cogen And Distilleries Private Limited · R.K Utilities Private Limited · Ramasamy Power Gen Private Limited · K.R. Energy Services Private Limited · R.K.M. Estates Private Limited · Theragen Lifesciences Private Limited · Theragen Molecular Innovation Private Limited · Rkm Social Welfare Foundation · Sri Ramachandra Sports Sciences Private Limited · Theragen Biologics Private Limited · Madras Leaf Private Limited · Axon Constructions Private Limited · R.K.M Powergen Private Limited · R.K.Powergen Private Limited · Saksin Lifesciences Private Limited · Arumugam Farms Private Limited