@aniladivishnu.2000
Yay man...
This is what I wanted to listen.
Just like JioFi,it is sourced and have all the option.
I once tried to do the same in JioFi to u lock it and it had options to select band and all other hidden options in html.
So,I have finger crossed.
Someone just need to inspect elements properly.
Try by disabling JavaScript in browser after login.
This worked for JioFi however we could not root it yet...but VLAN id can be found.