Please can anyone suggest resource to practice python at elementary level or beginner level
The forum search functionality is really good. We have several people on this forum who are learning or have learned Python and shared resources. If you use the forum search you can easily find places where people have discussed tools, books, and courses that they like.
For practicing - Codewars and Hackerrank.
I find that this website is ok: https://www.w3schools.com/python/default.asp
but you are better off just getting a coding book. The best solution is just to experiment.