• The Dharwar system includes some of the highly metamorphosed rocks of both sedimentary and igneous origin. The Dharwar system is the most ancient metamorphosed sedimentary rock system of India.

The Dharwar system is well established in:

• The Dharwar-Bellary-Mysore Belt of Karnataka; Ranchi, Hazaribagh of Jharkhand; Balaghat, Rewa of Madhya Pradesh; Bastar, Dantewara and Kanker of Chhattisgarh; and Sundergarh, Keonjhar of Odisha.
• In the extra-Peninsular region, it is well represented in the Himalayas, both in the central and the northern zones, as well as in Meghalaya.