Circle Rates are the minimum valuation of land and immovable properties in the city. It ensures that properties are not undervalued and keep check on use of black money. While registring your property you have to pay stamp duty according to the circle rate.
Government of Delhi has revised the circle rates in Delhi a few days back (Read Here).
Below is the existing and proposed circle rates for Delhi.

Category A
Colonies: Anand Niketan, Friends Colony, Maharani Bagh
Proposed Circle Rate: Rs. 6,45,000
Existing Circle Rate: Rs. 2,15,000
Category B
Colonies: Greater Kailash 1, R K Puram, Defence Colony
Proposed Circle Rate: Rs. 2,04,600
Existing Circle Rate: Rs. 1,36,400
Category C
Colonies: Lajpat Nagar, Kalkaji, East of Kailash
Proposed Circle Rate: Rs. 1,33,224
Existing Circle Rate: Rs. 1,09,200
Category D
Colonies: Prashant Vihar, Dwarka, Daryaganj
Proposed Circle Rate: Rs. 1,06,384
Existing Circle Rate: Rs. 87,200
Category E
Colonies: Rohini, Defence Enclave in Mahipalpur
Proposed Circle Rate: Rs. 58,365
Existing Circle Rate: Rs. 47,840
Category F
Colonies: Dawat nagar in Okhla, Daya Basti in Shastri Nagar
Proposed Circle Rate: Rs. 47,140
Existing Circle Rate: Rs. 38,640
Category G
Colonies: Dabri Extension, Dairy Colony in Roshanpura
Proposed Circle Rate: Rs. 38,442
Existing Circle Rate: Rs. 31,510
Category H
Colonies: Daoili Village, Daulatpur
Proposed Circle Rate: Rs. 19,361
Existing Circle Rate: Rs. 15,870
Circle rate of group housing society flats in year 2002 for rohini (E category)
Its good that the Circle Rates have been increased… This would certainly reduce the black money that is in circulation and genuine users would also be able to take more loans from banks for the same as the registered value of the property has increased…
I totally agree with your comments.