Mesi uses the Poppins font family by Indian Type Foundry across all its digital and physical touchpoints:
Main headers (H1)
Bold
Default: 48 dp
Sub headers (H2)
SemiBold
Default: 24 dp
Banner (also used as H3)
SemiBold
Default: 20 dp
Ingress
Medium
Default: 24 dp
Body
Medium
Default: 12 dp
Call-to-action
Bold
Default: 16 dp
The Poppins font family can be downloaded for free from Google Fonts.