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1. Oduvile Yathraikkayi Innu Georgettans Pooram (Movie) Vijay Yesudas -
2. Oh Daivame (Kanum Kanninale) Karthavu M. G. Sreekumar -
3. Oh Damahaimneen (Suriyani) Suriyani Ganangal Unknown Artist -
4. Oh Divya Karunyam Yeshuvinte Sneham Unknown Album Sujatha Mohan -
5. Oh Divya Karunyame Ente Jeevante Adharame Unknown Album Unknown Artist -
6. Oh Divya Karunyame Nee Ennil Vannidumo Eesow Elizabeth Raju -
7. Oh Divya Karunyame Oh Sneha Paramyame Unknown Album Kester -
8. Oh Divyamam Snehame Aathmavin Althara Kester -
9. Oh En Yeshuve Oh En Jeevane Oh En Yesuve Kester -
10. Oh Ente Eesho Ente Aathmav Kathirikkunnu Easwara Naamam Biju Narayanan -
11. Oh Pavanathmave Parannirangeedane Eesoikku Njan Kanmani K. G. Markose -
12. Oh Pavanathmave Shoonyatha Nirayumee Unarvin Kodungattu Biju Karukutty -
13. Oh Sneha Jwalaye Ennathmavine (St. John of the Cross) The Canticles Kester -
14. Oh Sneha Rajanam Uneesho Unknown Album Unknown Artist -
15. Oh Snehame En Daivame Unknown Album Unknown Artist -
16. Okkatheduthenne Thaalolichoottiya Unknown Album Sreya Jayadeep -
17. Olivin Chillakal Onnayi Veeshi Christ Kester -
18. Onnai Ucha Swarathilavar Holy Qurbana Unknown Artist -
19. Onnu Thottal Mathi Ninte Nottam Mathi Karthavu Amrutha Suresh -
20. Onnu Vannal Mathi En Ullil Eesho Unknown Album Midhila Michael -
21. Onnu Villichal Odi Ente Arikil Ethum Unknown Album Kester -
22. Onnum Njan Nediyathalla Unknown Album Libin Scaria -
23. Onnumillaymayil Ninnumenne Eesow Kester -
24. Orikkal Yeshu Nadhan Galilee Kadalthirayil Vachanam M. G. Sreekumar -
25. Orikkalum Marakkuvan Kazhiyathe Jesus Jayachandran P. -
26. Orithiri Idam Tharumo Njanum En Eshoyum Unknown Artist -
27. Orma Vecha Naal Muthal Vishudham M. G. Sreekumar -
28. Ormakal Mathramayi Vidacholli Unknown Album Kester -
29. Ormayil Nin Mukham Mathram Christ M. G. Sreekumar -
30. Ormayil Njan Varacha Nin Mukham Nee Valaranam Njan Kurayanam Sithara Krishnakumar -
31. Oro Manavum Oru Manamayi Theerthidam Divine Melodies Unknown Artist -
32. Orshlem Nagarathin (Oshana Mass) Oshana Sunday Ceremonial Mass Unknown Artist -
33. Oru Cheru Kattil Paaripparakkumee Snehabhojyam Kester -
34. Oru Divya Yagam Orungukayay Unknown Album Wilson Piravom -
35. Oru Greeshma Rathriyil Unknown Album Nithya Mammen -
36. Oru Janmam Ore Ore Oru Janmam Heaven Daleema -
37. Oru Kodi Janmamee Bhoomiyil Thannalum Divyadanam Kester -
38. Oru Kunjappamayi Altharayil Unknown Album Kester -
39. Oru Kunjosthiyayi En Kaivellayil Unknown Album Maria Kolady -
40. Oru Kunju Mannayayi The Gift Unknown Artist -
41. Oru Kunju Poovu Njan Kazhchayekunnu Unknown Album Kester -
42. Oru Maha Thyagathin Anusmaranam Thiruhithampol Kester -
43. Oru Mazhayum Thorathirunnittilla Unknown Album Unknown Artist -
44. Oru Naalil En Manam Thengi Mochanam Unnikrishnan -
45. Oru Nimisham En Yeshuvin Munpil Unknown Album Kester -
46. Oru Nimisham Manam Uyartham Unknown Album Wilson Piravom -
47. Oru Nottam Mathiyente Amme Unknown Album Libin Scaria -
48. Oru Nullu Sneham Tharumo Srishty Jayachandran P. -
49. Oru Thanal Thedum Kulir Chola Thedum Sneharagam K. S. Chithra -
50. Oru Thiriyayi Eriyam Njanum Thirukacha Unknown Artist -
51. Oru Vaakku Chollan Unknown Album Kester -
52. Oru Vela Yeshuvin Charathirunnal Krushithane Udhithane Teena Mary Abraham -
53. Oshana Daveedhin Suthane Snapaka Yohannan (Movie) Unknown Artist -
54. Oshana Eeshanu Sathatham Holy Qurbana Unknown Artist -
55. Oshana Jayageetham Paadidam Unknown Album Unknown Artist -
56. Oshana Oshana Daveedin Suthanoshana (Oshana Mass) Oshana Sunday Ceremonial Mass Unknown Artist -
57. Oshana Paaduvin Nadhane Vazhthuvin (Oshana Mass) Oshana Sunday Ceremonial Mass Unknown Artist -
58. Osthiroopanam Eeshoye Unknown Album Kester -
59. Osthiyil Thiruvosthiyil Nirayum Unknown Album Wilson Piravom -
60. Osthiyil Vaazhum Daivame Hosana Vol-2 Daleema -
61. Othiri Othiri Snehichorellam Lord Jesus Sujatha Mohan -
62. Ozhukum Puzhayore Chayum Marathanalil Unknown Album Abhijith Kollam
