Can I sell on Flipkart without a brand?

The three positions you can take

Generic or unbranded listings, which several categories permit. Apparel, home and accessories are the usual ones. The category rules decide it and there is no blanket policy.

Reselling an authorised brand, which requires a document trail. Listing a brand you have no authorisation for is the fastest route to a takedown and a strike on the account.

Registering your own brand, which is the only one of the three that gives you a listing nobody else can attach to.

What you give up without one

On a shared listing you are one of several sellers behind the same product page, so the differentiators reduce to price, delivery promise and seller rating. Whoever is willing to earn least tends to win the box.

You also inherit the ratings and the return history of the listing rather than building your own, which cuts both ways and is outside your control either way.

When registering a brand is worth it

When the category has room for a genuinely different product. A private label in a commodity category just joins the same race carrying more inventory risk.

When you intend to advertise. Paying to send traffic to a listing that any other seller can win is an expensive way to subsidise a competitor.

Brand registration takes time on the trademark side, so it is a decision worth making before the catalogue is built rather than after the margin gets squeezed.