1965 - Census Of India 1961 - Vol. VII - Kerala - Part VI D - Village Survey Monographs Alleppey District - M.K. Devassy 

1964 - Census of India 1961 - Vol. VII - Kerala - Part VII A - Selected Crafts of Kerala - M.K. Devassy 

1968 - Census of India 1961 - Vol. VII - Kerala - Part I C - Subsidiary tables - M.K. Devassy