As you can clearly see, F35 despite being a Medium sized aircraft can carry either 6 AAMs or 2*AAMs and 2*2000pound bombs. In comparison, AMCA can carry either 4*AAMs only or 2*AAMs & 2*1000pound bombs or more lighter bombs.
What will happen is India wont have the capacity to destroy strong concrete bunkers etc in stealth mode because of which IAF will complain again about the weapons carrying capacity.
For your kind information , drdo and american have different approach , drdo has stopped making big big claim and then delivering short if it ,then improving it , this is american way.
Second and important thing , which missile it is , don't say aim 120 , look at fin positioning and size , amca models are rendering with astra mk 1 and 2 . It's iwb depth is u clear ,so if ut us deep enough ,then 1000 kg bomb is reality
Amca can too carry 5 aam