Complex sentence: The Travancore Temple Entry Proclamation did not have a serious influence in Cochin or British Malabar as the attitude of the Zamorin and the Maharajah of Cochin were staunch opponents of temple entry for dalits.
Split into simpler sentences: The Travancore Temple Entry Proclamation did not have a serious influence in Cochin or British Malabar as the attitude of the Zamorin and the Maharajah of Cochin were opposed. Both the Maharajah of Cochin as well as Zamorin Of Calicut were staunch opponents of temple entry for dalits.