Truly Lossless music app for songs (old Bollywood songs, example Kishore Kumar, Manna Dey (FLAC), use TIDAL or Quboz as reference.

Self-publishing India based platform with e-book, paperback, hardcover and special editions format( Special editions can have BTS content, artwork, keynote or author exclusives etc)

Large data center for in- house AI capabilities.

Power tools manufacturing locally, global competitors are there( DeWalt, Makita, Ryobi, Milwaukee, Bosch etc), scope for in-house manufacturing. For example, Taparia tools are good but don't manufacture power tools. Gen-Z and next to that will move on to DIY because it is cool. A good chunk of market will be available, provided white labelling is avoided.

Home automation will take a hit due to privacy issues, market will shrink.

Cell phones less than 5 inch screen, primarily focused on security features; a market is open for consumers and nobody is catering to it, yet. Not everybody wants to be a content creator.

Operating system developed from scratch, security measures as Linux and UI as Mac. Best of the both worlds.

Animation studios for Indian gaming market or comics.

Drip irrigation manufactures kit home grown(Jain irrigation does supply quality but doesn't cater different automation scenarios. garden tools, reference WOLF-Garten.

Modular paper journaling system or stationary, use reference TRAVELERS COMPANY NOTEBOOK, Japanese paper such as TOMOE River as reference. There is an existing brand PENNLINE to cater but does offer same quality.

Watercolors home grown brand camel artist colors are value for money but have toxic smell. Existing brand such as Mijelo Mission Gold solves the problem. But they are premium; less than Daniel Smith but still way expensive than Camel Artist colours.

Bullet inks and home grown fountain pen inks as well as pen. Very few Indian brands, an open space for craftsmanship and a market as well.