So as per shook-law's blogspot , AMCA will carry 1.5T internal weapons + 5 ton external weapons + 6.5 T internal fuel = 13 T.
Since MTOW is 25T, so empty weight will be 12 Tons.
If mtow is just 25 tons and AMCA mk1 will have 2 f414 with 10ton each so 20 ton thrust. That's a pretty good TWR.
In stealth configuration mtow is just 20 tons and TWR then is Superb 1.
About supercruise from Wikipedia
The two Snecma M88s that power the Dassault Rafale enables the Rafale to supercruise with four missiles and a belly drop tank.[11]
So Rafale can supercruise with 4 missiles with just 100 Kn ( 10 ton) dry thrust by 2 M88.
AMCA will have 116 kn (11.6 ton) dry thrust with 2 f414 . So it should be able to do the same.