We plan to bring eChai across 100 cities in India. It starts with eChai Startup Demo Day on 26 September, all in person. 11 cities confirmed, 178 founders registered. Any city that reaches 20 interested founders is on too. See your city
Everything from

DeltaX

1 resource from DeltaX we point founders to, and the questions each answers.

📊 Report
✓ Link checked India Free Intermediate

A named, credible Indian D2C brand and its actual targeting choice, a useful real-world data point on when a narrower, context-based signal can still beat pure broad delivery.

Clear Skies Ahead: Mamaearth's 102% ROAS Through Weather-Targeted Marketing

From DeltaX

  • Mamaearth built city-level, weather-triggered targeting (humidity, AQI, rainfall) across seven Indian cities rather than relying only on broad delivery.
  • The campaign is reported to have hit 102% of its targeted ROAS, with a 4.4-point uplift in ad recall.
  • A reminder that 'broad wins by default' is a starting point, not a rule: category-specific signals can still beat generic broad delivery when the product logic supports it.
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