If you want honest review then the best way you can take some demo classes of that online institute, you can also visit some of the review site to see the review of that institute. There are various institute which provide various courses like
NIFTY trading academy
National stock exchange it provide various types short term courses
Radical Institute of stock market,
Maheswari institute,
Arihant capital market,
Kalpataru Institute of capital market, etc.
(Source: https://www.quora.com/Can-someone-give-honest-reviews-regarding-online-trading-academy-India-Mumbai)
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