Where can I get genuine training for Cordyceps Militaris cultivation?

Good thinking, because the safest training comes from neutral institutions that are not trying to sell you a kit. Approach the ICAR Directorate of Mushroom Research (DMR) at Solan, State Agricultural Universities and relevant research institutes that work on medicinal mushrooms, and your KVK for guidance and referrals. These sources teach the real sterile technique and climate control without the inflated income promises, and they can tell you honestly how hard the market access is. Be wary of paid courses run by the same people selling spawn and buyback contracts, since their incentive is to sell you the kit. A genuine course will spend as much time on contamination control and on the realistic market as on the growing. Treat training as a way to test whether you can really do this and sell it, before committing capital. DMR Solan is the best neutral starting point.