Hii

You can go for B.tech(Computer Science) Engineering to become a mobile app developer. Mobile developers write programs inside of a mobile development environment using the Objective C, C++, C# or Java programming languages.

To Colleges offering courses on Mobile Application development, Click below link-

https://university.careers360.com/articles/unique-courses-2016-career-opportunities-in-mobile-app-development

All the best.