Rct charges varies from doctor to doctor but in general it can cost something between 2000 to 3000 rs. ( only rct charges) if you go for crown that will be extra. Regarding types of rct it can be of two types single sitting and multiple sitting both are good depending upon cases you can consult your dentist which will be a better option for you.

Root canal treatment (RCT) ,if you want to get it done by a good endodontist, it's will be Rs 6000/7000/-per tooth.and the cost of crown will be approx Rs3000-8000/- per tooth-depending upon the quality of crown you want.

Hello You need to visit a dentist and post clinical and X Ray evaluation one can explain you the treatment plan and the charges involved. There is no such thing as types of RCTs but yes depending upon the tooth structure remaining we need to plan if a post and core is required along with RCT and the crown.

Sorry ,but v Can't comment without clinical examination