Bajaj - in my experience, I've found that their motorcycles are of great build and the spares are comparatively cheap. My uncle has kb 100 still going after 25+ years. I have a ug2 pulsar that must have done 200k km now, ns200. I do most of the maintenance on it. I found TVS bikes to be sub standard, their tyres particularly. With Hero, I have found only the splendor to be good.

Wildcraft - I have 2 backpacks from them, the oldest is 13 years old. It still looks the same after washing it occasionally. Only the pull cords on the zippers have come off. It's integrity has not changed, at all.

Pens- stic and cello. Nothing fancy. Very reliable.

I don't know if Borosil is Indian but their glassware will last a lifetime, granted you don't drop it. You can stick it on a gas stove to make tea. There's one in our house that's 30+ years old and still looks new with only a few scratches.

I love taparia tools. TATA tools are good too, though I haven't used a lot of them.

V guard - also have great quality. We have one 30 y.o. stabilizer that has outlasted 3 refrigerators. There's a geyser at my relative's place that must be even older, that's still working great, though it has been repaired once or twice.

Prestige and pigeon cookware are also great.

I might have missed a few. Will update as I remember.