Karnataka Farmers can generate RTC, mutation, Index of rights (RR5&6) online now.
see below link
bhoomi.karnataka.gov.in/land … trict.aspx
During cultivation season started there used be a big que. it used to take 2-3 days to generate latest RTC which was needed for any subsidy. Now farmer can generate RTC from anywhere.
Land buyers can check if the land is under litigation.
I am sorry If any other states have this system, I am unaware. I heard TN has this facility unroftunately I dont know the URL.