Who is popularly called “Vaikkom Hero”?

ക്ഷേത്ര പ്രവേശന വിളംബരം നടന്ന വര്‍ഷം

Who is associated with 'Pidiyari System' (a small amount of rice) In Kerala society? 

For his outstanding and selfless social activities, the people of Kerala honoured with the title "Bharata Kesari", who is that leader? 

Social Justice and brotherhood of man were the cardinal principles of ________ teaching. 

A famous renaissance leader of Kerala who founded Atma Vidya Sangham?