dear student,

Without doubt, the top two colleges in Kerala would be  (NIT Excluded)

1. College of Engineering, Trivandrum
2. TKM College of engineering, Kollam

Both these college ensure a good college culture. The acadamic results are good. Best placements in the state. The level of freedom you enjoy here is coveted by students from other colleges. The fee structure is very reasonable, almost neglibible. Infact, you'll be blessed with a lot of scholarships from Govt. and Alumini.

Other good colleges would include

3. Govt. Engineering college, Trissur
4. Model Engineering college, Thrikakara
5. Mar Athanasius College of Engineering, Kothamangalam

hope it helps!!