Can any help how to switch from sales role to business analyst role?

Hi Folks!!

I was going through a lot of posts here where people are putting out their thoughts on different topics. I am working with one of the startups in Bangalore and now looking to switch . I am considering a Business Analyst role as a good fit for me. If there is something else I should apply for please let me know. Also some tips on how I can describe my work related to that role on my resume.