Hello sir,
cold storage establishments you should look which are the products you want to store, for example potato , apple can be stored and high value if such crops are growing in your area you can think of establishing cold storage.
department of horticulture provides 50 % subsidy for NHM and NHB for that you will have to prepare project and submit to NHM and NHB in respective format please visit the website.
if such crops are not cultivated think of other ventures and it costs 1 crore to establish cold store of 100MT capacity.
mushroom cultivation there are three kinds of mushrooms
like
Oyster which requires 25 oC for cultivation easy and short durated but used with in 4-12 hr after harvest .
milky mushroom:- which requrires 36 to 38 oC for cultivation 35 to 45 days requieres to harvest and can be stored for 15 days under refrigeranton.
Button mushroom:- can be done in lndustry scale only with minimum 50 kg every day harvest lot of investment required more than 50 lakhs for this capacity comes up well in temperate regions 12 to 16 oC, 2 to 3 months for cltivation . please select type of mushroom you want grow so that we can advise further