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Mobikwik·Product Manager·Onsite - Product Sense / Strategy·Intermediate

Intermediate
Jun 2026

Summary

PM interview at Mobikwik, just the one question from what I can tell. A market estimation problem, which makes sense given how much fintech roles lean on sizing exercises.

Questions Asked (1)

Q1

How many credit card users are there in India? Walk through your estimate.

Product Analytics & MetricsProduct Sense & Ideation
Author's notes

I started with total population, filtered down by working-age adults, then tried to layer in income brackets and banking penetration.

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Suggested Approach

Use a top-down approach: start with India's population, segment by age and urban/rural, then estimate credit card adoption based on income and banking access. Cross-check with supply-side data like number of credit cards issued and active users.

Pro tip: Differentiate between credit card holders and active users; for a fintech like Mobikwik, focus on active users and their transaction behavior to show product sense.

1. Start with population

Begin with India's total population (~1.4 billion) and segment by age, focusing on the adult population (18-65) which is roughly 60-65%.

2. Segment by income and geography

Split adults into urban and rural, and further by income levels. Credit cards are more common among urban, higher-income individuals.

3. Estimate credit card penetration

Apply penetration rates: e.g., urban high-income: 50-60%, urban middle-income: 20-30%, rural: <5%. Sum up to get total credit card users.

4. Validate with supply-side data

Cross-check with number of credit cards outstanding (~60-70 million) and active cards (~40-50 million) from RBI data.

5. Sanity check and conclude

Ensure the estimate aligns with known figures and discuss implications for Mobikwik's product strategy.

Key Points to Mention

  • India's population and demographic segmentation
  • Urban vs rural divide and income levels
  • Credit card penetration rates by segment
  • RBI data on credit cards outstanding and active cards
  • Difference between credit card holders and active users
  • Implications for Mobikwik's product and growth strategy

AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.