* "I, Tina: Madhumalati Kapur (1893-1932)" (2005)
* "Our Beloved Sister: Dr. Paul Verghese (1876-1950)" (2005)
* "Fr. Anthony Elenjimittam: A Man from History" (2006)
* "Sister Alphonsa: Her Life and Times" (2006)
* "St. Kuriakose Elias Chavara: A Man for All Seasons" (2007)
* "The First Bishop of Changanacherry: Mar Thomas Kurialacherry" (2007)
* "Bishop Mar Sebastião José Pereira" (2010)
* "The Saint of Parumala: Mar Gregorios of Parumala" (2012)
* "An Unfinished Song: Sister Rani Maria" (2014)
* "The Apostle of Unity: Mar Ivanios" (2016)
* "The Silent Witness: Fr. Joseph Vithayathil" (2018)
* "The Little Flower of Knanaya: Sr. Alphonsa" (2020)
Awards:
* Kerala State Sahitya Akademi Award for Biography and Travelogue (1999)
* Kerala Sahitya Akademi Fellowship (2011)
* Kendra Sahitya Akademi Award (2012)
* Fr. Thomas Kunnunkal Award (2013)
* Kerala State Catholic Bible Society Award (2015)
* Kerala Sahitya Akademi Endowment Award (2020)