Dear Mr. Rao Puran Pal,
Currently I am abroad & will be reaching India after 1 month.
If you have land next to river then besides APIARY (Bee Keeping) you can also do aqua culture (keep fresh Water Fishes like carps-Silver carp, China Carp, Rohu, Katla, Mrigal & Giant Fresh Water Prawns). You have to change part of the pond water daily for better health & faster growth of the fishes. The water which you remove from the pond can be utilized for agriculture as it is rich in plant nutrients. Experiments conducted show increase of about 11% in agriculture yield. If you also have an APIARY, the the increase in pollinated crops is almost more than 200% due to increased pollination of flowers.
Besides HONEY you get BEES WAX used in cosmetic industry, BEE GEL used in Pharma industry & BEES VENOM is used for curing arthraitis.
You can contact me by sending me a private e-mail.
S. Kapoor