I tried with 1 acer (near Bangalore) of colored capsium last year. With respect to cultivation and maintaince, it is relatively easy. I had a buy back with fixed rate of Rs 35/kg from one of the local companies. For the first 5 months things went on smoothly but there after faced problems with the buy back company. The company was rejecting the crop giving some reasons but actually the rate in the market had fallen and he did not want to continue to give the fixed price. Finaly after 6 months I removed the crop and planted Carnations.
I think for colour capsium its very important you have a buyer as its not easy to sell in open market.