Need help with debugging - Android SDK issues

Hello,
I recently created a game in lua and now I want to install the app on my phone through adb for debugging.

I downloaded android SDK as mentioned in debugging tutorial.
But, when I install it, I do not see any SDK manager installed. (Please have a look at screenshot below)

Please help regarding this.

P.S: When I downloaded the SDK for the first time and installed, the SDK manager opened and I downloaded the required packages. But then I uninstalled the complete SDK (I wonder why :confused: ). Now when try installing it again, not SDK manager appears.

Help please…

No suggestions regarding this?

No suggestions regarding this?