Mulsikha - Professor Risiman Amarasinghe intimated to us his yearing desire to write a Thesis on the "Mulsikha" or Monkish discipline in English. We are quite aware of his thorough knowledge of Sinhala and Pali. It is indeed profound. Hence we encouraged him further. Yet we entertained doubts in our mind whether he possessed the Buddhist Doctrine and that too on an abstruse text related to the discipline of the Buddhist clergy. We are aware that he is a non-Buddhist ; in fact a Roman Catholic by persuasion but amazingly his research induce us to reject such a view. Until now scholars considered the name of this text as “Sikhavalanda”. Prof. Amarasinghe terms it “Mulsikha”. He employs his logical perception to reach such a conclusion. This research not only displays Prof. Amarasinghe’s sound knowledge in linguistics but also his etymological erudition. Further he has based his research approach on Munidasa Kumarathunga’s analytical research and editing system. In sri Lankan literature a research work on this book has not so far been produced. Hence it is with great pleasure that I introduce this scholarly work to the reader.