Mostly I try Mutton/Chicken Biryanis(Biriyani).
Cochin:
Grand Hotel,MG Rd - Good Biryani
Tandoor Woodlands Jn - good
Chillies, above Tandoor Woodlands Jn - Biryani,Mutton Pepper fry,Andhra food(not really!yet good)
Just Biriyani Pulleppady - good
Real Arabia,palarivattom - Al Fahm,Shwarmas...