He was the Elaya Raja ( crown prince ) until his brother Midukkan Thampuran died on 13 October 1943 .
Maharaja Gangadahra Koviladhikarikal Sri Ravi Varma ruled Cochin from 1943 to 1946 .
Gangadahra Koviladhikarikal Sri Ravi Varma was the Elaya Raja ( crown prince ) until Gangadahra Koviladhikarikal Sri Ravi Varma 's brother Midukkan Thampuran died on 13 October 1943 .
Maharaja Gangadahra Koviladhikarikal Sri Ravi Varma ruled Cochin from 1943 to 1946 .