Check the NOAA "Global Historical Climatology Network" (GHCN). Access via ftp (ftp://ftp.ncdc.noaa.gov/pub/data/ghcn/daily/). Here you find KATHMANDU AIRPORT and DHANKUTA for Nepal (50 and 45 years, respectivly) and 3000+ sites for India. Good luck!

Dear Harish Bahadur Chand,

Check SERVIR ClimateSERV (https://climateserv.servirglobal.net/).

Daily precipitation of countries and states is available (1981-Current). It also allows entering polygons in GeoJSON format.

or

You can check the page:

https://www.worldclim.org/data/worldclim21.html

You may find what you need.

Regards.

PHR

You can use these dataset with reference

https://climatecharts.net/

For India use can use this link https://www.imdpune.gov.in/Clim_Pred_LRF_New/Grided_Data_Download.html

Philipp Körner Paul Hernández-Romero Md. Rezaul Karim Shashidhar Kumar Jha Thank you very much for the information.

Dear Harish Bahadur Chand

Possibly the simplest way, is the one proposed by Harris et al., in fact you only have to choose the quadrant of any part of the world in google earth and download the information, I share article and .kml file.

Greetings