Bengaluru Rainfall data from IMD for the 100 year period from 1901-2023.
You can read an analysis of the data here: https://bengaluru.citizenmatters.in/some-lessons-for-bengaluru-from-100-years-of-rain-data-8013
Daily Temp - max, min in Degree Celsius for 1951-2020 for Major Indian Cities:
Delhi, Kolkata, Mumbai, Chennai, Bengaluru, Ahmedabad, Hyderabad and Pune