which is the best institute in mumbai to learn python language and they provide good placements as well after the course is over;

Your question says you have a minimal scope of thought, Sorry but I couldn't say it more politely.
My thought process is like this because Ideally, you should be looking for a teacher who teaches Python language and can support with an interview which is scheduled.
Area-specific teaching is an old fashioned way. There are many good teachers who teach ONLINE. You need to take trail class with them and decide which suits you and who can support you for the interview. Depending on the institute for a job is not in fashion these days.  MNC's has started looking for candidates via Linkedin and other platforms with good project experience. 
It can only be done if a good teacher supports you, rather than an institute who has the same old topics for projects and no value anywhere. 

I am a Data Scientist working with an organisation on cutting edge technologies in computer vision using various machine learning and deep learning techniques. I hav pursued my Post Graduate Program in Business Analytics and Big Data (PGP) in March-2017 batch from Aegis School of Business, Data Science, Cyber Security and Telecom . Aegis is actually the institute which has helped me in upbringing my career as a Data Scientist. Aegis provided a 11 months of course which included almost everything that a data scientist requires to work in the field of A.I. I was exposed to variety of projects covering various domains improving my coding and analytical skills at it's best. And now with the help of Aegis | Placement , I'm working as a Data Scientist working solely on Artificial intelligence.

I am a Data Scientist working with an organisation on cutting edge technologies in computer vision using various machine learning and deep learning techniques. I hav pursued my Post Graduate Program in Business Analytics and Big Data (PGP) in March-2017 batch from Aegis School of Business, Data Science, Cyber Security and Telecom . Aegis is actually the institute which has helped me in upbringing my career as a Data Scientist. Aegis provided a 11 months of course which included almost everything that a data scientist requires to work in the field of A.I. I was exposed to variety of projects covering various domains improving my coding and analytical skills at it's best. And now with the help of Aegis | Placement , I'm working as a Data Scientist working solely on Artificial intelligence.