Solution:

Malayalee Memorial – The Malayali Memorial was a petition submitted too the Maharaja of Travancore on The New Years Day in 1891.
Ezhava Memorial -Ezhava Memorial is a memorandum submitted to the Maharaja of Travancore on 3rd Sept 1896.
Kallumala Samaram – Kallumala Samaram is an agitation or social revolution by Pulayar community that took place at Perinad and nearby villages such as Cherumoodu, Kanjavely etc. in, Kollam district on October 24, 1915.
Nivarthana Agitation – 1932 – Ezhavas, Christians and Muslims demanded for representation in the Legislature in proportion to their numerical strength.