#1. Which state is to the north of Kerala?
#2. Which is the highest populated district of Kerala?
#3. The year in which Travancore and Cochin were merged.
Before Kerala was formed, Malabar, Cochin, and Travancore were separate regions. The Malabar Presidency included Thalasseri, Kannur, and Kasaragod in northern Kerala. The princely state of Cochin oversaw the middle region, while the state of Travancore governed the southern section. After Independence, Travancore and Cochin were merged on 1 November 1949. Aikya Kerala Movement subsequently caused the reformation of the state on a linguistic basis. As a result, on 1 November 1956, Travancore-Cochin and Malabar merged to form the state as it is now with some taluks of South Canara added.