I am not well aware of the coaching centers in Ranchi or Daltonganj but I can surely provide you ways of learning python online.
Now, if you are a newbie to Python programming and don’t know anything about it, start with codeacamy free course on Python. Link: https://www.codecademy.com/learn/python . This course will help you get through the basics and a little deep topics in python. With payment you can access projects and extra features to learn. You can also check sololearn.com . It is a platform that provides you free course on different languages and is also like a community where you can discuss about your queries and share projects.
Few other websites/links that offer clear concept on data science with python are:
Also, paid courses on Udemy are one of the preferred courses as you get a verified certificate on course completion and also the process is good to cope up with.
Finally, platforms like hackerrank/hackerearth will help you develop your concepts.