There's huge cry that Madurai idlis are best. Having stayed in Madurai for 7-years, I can give assurance that they're crap. Madurai foods (especially available in hotels) are of poor hygiene and poor in taste. But, I always like the people--they're friendly and helping. My favorite is always Azad Hotel's (Nagercoil, near Tower Junction) chicken kothu parotta . Nagercoil food like aviyal , samba (red) rice , etc are always good and healthy as they're cooked in coconut oil and with high hygiene--even in hotels.
Learner, Hacker, Idiot