Sethu's other literary works include Velutha Koodarangal, Thaliyola, Kiratham, Niyogam, Sethuvinte Kathakal and Kaimudrakal.

Critics state that he used his South Indian Bank Chairman position to give expensive advertisement to newspapers regularly in return for free media coverage for him.

[4] In 2015 March, the National Democratic Alliance government removed him from the post in a most ignominious manner, six months before his tenure was due to end.

[7] His latest work, The Cuckoo's Nest, is the story of Madam Agatha, a former devout nun who, after renouncing the order, decides to take up the cudgels for the cause of tolerance and pluralism.

She decides to set up a unique institution called 'Nest' for empowering the hapless girls from all over the country, discarded by society.

The novelist attempts to portray the kind of challenges she has to face from vested interests all around while working towards secularism, and how she manages to swim against the tide.

Sethu, is one of the pioneers of modern Malayalam fiction who brought about a radical transformation of sensibility through his writings during the sixties and early seventies.

His prominent works include Pandavapuram, Niyogam, Kaimudrakal, Vilayattam, Atayalangal, Kilimozhikalkkappuram, Marupiravi and Aliya (Novels), Petiswapnangal, Doothu, Chilakalangalil Chila Gayathrimar, Arundhathiyute Virunnukaran and Sethuvinte Kathakal (Short stories), and Sanidasa, Yathrakidayil (Essays).