What are the institutions set up under COPRA for the redressal of grievances? Explain

What are the institutions set up under COPRA for the redressal of grievances? Explain.

Under COPRA, a three-tier quasi-judicial machinery at the district, state and national levels has been set up for redressal of consumer disputes.
District Courts deal with cases involving claims up to Rs. 20 lakh, State Level Courts between Rs. 20 lakh and Rs. 1 crore and the National Level Court deals with cases involving claims exceeding Rs. 1 crore.
If a case is dismissed in District Level Court, the consumer can also appeal to the State and then to the National Level Court.