1. You may showcase your idea, prototype or product on https://www.agnii.gov.in/.
2. You may also upload your idea on http://ideas.msme.gov.in/ where the ideas would be rated. It also has a provision of connecting to the Venture Capitalists.
3. You may go through http://www.gian.org
4. a. Before uploading the idea, it is strongly recommended to get your intellectual effort protected by various IP regimes like Patent, Copyright, Trademark, Design Registration.
4. b. If you are registered as a Startup, you may make use of Startups Intellectual Property Protection Scheme(SIPP). The scheme is detailed at https://www.startupindia.gov.in/content/sih/en/startup-scheme.html
4.b.1.You can find Patent Facilitators who can represent you in filing patents before Patent Office at the following link. https://www.startupindia.gov.in/content/sih/en/facilitator.html
4.b.2.You can find Design Facilitators who can represent you in filing for a design and trademark registration at the following link.
http://www.ipindia.nic.in/newsdetail.htm?658
