All guesstimates
ModerateMarket Sizing reported at Bain
Estimate the number of credit cards in India
Scope it first — questions to ask
- · Cards in circulation or unique cardholders? — Scope: cards in circulation (people hold multiple).
- · Active + inactive? — Scope: all issued, non-expired cards.
Assumptions on the table
- · India population ≈ 1.4B; adults (18+) ≈ 65% — census age-structure ballpark
- · Credit cards are overwhelmingly urban — urban share of adults ≈ 35%
- · Only formal-income earners pass issuer checks: ~30% of urban adults
- · ~55% of eligible adults actually hold a card; holders average ~1.8 cards each
The worked solution
Attempt it before you peek
Guesstimates only build muscle if you struggle first. Take 5 minutes with pen and paper — or do it live with the AI interviewer.