Short answer — there isn’t a single “best” card for everyone. For a simple, reliable flat cashback DFCC’s cashback cards (guaranteed 1% on all spends, plus higher rates on certain co‑brands) are the strongest all‑round choice; if you spend a lot in specific categories, Sampath Bank’s American Express Everyday card (very high promo cashback — e.g. 15% on supermarkets, delivery/ride apps, telco & utility payments subject to caps/conditions) or bank cards with fuel co‑brands (Seylan / DFCC LIOC offers) can beat a flat rate for those categories. (advice.lk)

Which to pick (quick guidance)

• Best simple flat cashback (everyday purchases, minimal tracking): DFCC cashback cards — 1% on all transactions and extra benefits on some co‑branded variants. Good if you want predictable monthly cashback. (advice.lk)
• Best for supermarket / bills / ride & delivery apps: Sampath American Express Everyday (promotional 15% cashback on nominated supermarkets, PickMe/Uber/Ubereats, telecom & utility bill payments) — high % but limited by monthly caps and minimum spend rules. Read the T&Cs carefully (monthly cap, min. spend to qualify). (sampath.lk)
• Best for fuel savings: Cards tied to fuel partners (e.g., DFCC LIOC co‑brand, Seylan fuel offers) give higher cashback on fuel (3–5% in promotions). Good if fuel is a major monthly spend. Promotions/caps apply. (anybanq.lk)

Important details you must check before applying

• Cashback rate vs. category limits (some cards pay high % only for selected merchants). (sampath.lk)
• Monthly cashback caps and any minimum monthly spend required to be eligible. (sampath.lk)
• Whether cashback is credited as statement credit, deposited to a savings account, or issued as vouchers. (advice.lk)
• Annual fee, foreign‑currency/overseas rates, and interest/late payment charges — these can wipe out cashback benefits if you carry balances. (seylan.lk)

If you want, I can:

• Compare 3–4 specific cards (cashback %, caps, min spend, fees, suitable user profile) side‑by‑side using up‑to‑date bank pages and link the exact terms. (I’ll fetch the latest T&Cs and promotions.)