Evaluation of Drying Methods of Onion: Onion is one of the most important commercial vegetable crops grown in India. Both immature and mature bulbs are used as vegetables and condiments. It contains vitamin B and a trace of vitamin C and also traces of iron and calcium. The outstanding characteristic of onion is its pungency. Market Potential: Onions are used as salad and cooked in various ways in all curries, fried, boiled, baked used in soup making, in pickles, and for another purpose. This product has a good market in India and as well as for export purpose. The industry expects to export around 50,000 tonnes in 2016. Due to high onion rates, India had exported about 30,000 tonnes of dehydrated onion in 2015. Currently, in wholesale markets, onion prices are ruling at Rs 3-7 a kg, which was Rs 12-15 a kg last year at this time. Onion production has gone up to 20.3 million tonnes in 2015-16 against 18.9 million tonnes in 2014-15. Onion is rich in nutrition and per 100 gram contains:...