Read the following passage and solve the questions based on it.
(i) Six books on different subjects, viz., History, Geography, English, Hindi, Economics and Psychology, are arranged in a pile (not necessarily in the same order). Each book belongs to different persons whose names are Debasis, Harsh, Vishwas, Ravi, Sanjay and Neeta.
(ii) English book, which is kept on the top, belongs to Debasis, Psychology book, which is kept at the bottom does not belong to Sanjay or Ravi.
(iii) Economics book belongs to Harsh and is kept immediately below Hindi.
(iv) History book is immediately above Geography and immediately below Economics. Hindi book belongs to Neeta and History book belongs to Ravi.
Which book is fourth from the bottom?