Excel and SQL first for many people; Python and ML when the job actually needs them.
Read this alongside the Data Science Roadmap teaching at Krishna Institute of Computer Technology. The related course page carries duration, mode and curriculum.
If you are in Ahmedabad, combine this guide with a visit to the Ghatlodiya centre so a counsellor can map the next 8–16 weeks to your background.
Related reading sits in the same cluster: course page, category hub, and the Ahmedabad training page when the intent is local.