Default [Q] use link2sd with internal sd

I have a rooted Xolo q700i phone. I've installed a external sdcard and which is shown as sdcard0 in /storage. In /storage there is also sdcard1 which is i think internal sdcard. I am not using this internal sdcard. Since my internal memory is full, I want to use this internal sdcard with link2sd.

Can someone please help me with this.
- How to create partition in internal sdcard?
- How to use internal sdcard with link2sd?

I don't want to use my external sdcard for this as that one is nearly full and I have to remove it sometimes.

Thanks