Letters India 12 History 11 Literature & Fiction 8 English literature 7 Biography 5 കത്തുകള്‍ 5 Malayalam literature 4 Poetry 4 Commerce 3 Religion 3 American literature 2 Collections 2 English Literature 2 Hindi literature 2 Hinduism 2 Literature 2 Love letters 2 Malayalam 2 Memoirs 2 Postal communication 2 Speeches 2 Sri Aurobindo 2 50 world's greatest letters 1 Achuthamenon C 1 Akbar kakkattil (1954 - 2016) 1 American Literature 1 Anand 1 Aravindan (1935- ) 1 Ashitha 1