Yes, it is worth of doing PGPSM form NISM, here the things matter is if you learn anything from all focused then everything is worth enough, it is good to implement what you learn. As NISM-PGPSM is a 1-year course having fees of 5 lakhs attracts many students as compared to 2-year programme of MBA which has a fee of rupees 10 to 25 lakhs. However, if you want to learn technical and fundamental analysis then you can join any of the institutes like
Radical Institute of stock market,
Maheswari institute,
Arihant capital market,
Kalpataru Institute of capital market, etc.
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