1. The Congregation of Prabhudasi Sisters of Ajmer founded on 24th May 1906 at Ajmer, Rajasthan, India.
2. In 1908 the first batch of Prabhudasi Sisters made their first Religious Vows.
3. In 1909, twelve girls joined the Congregation; with the permission of the Holy See, and started to live as a community.
4. In 1910 the first Prabhudasi Sister died of T.B.
5. In 1910 Prabhudasi Ashram Thandla, the first branch house opened.
6. In 1911 the Prabhudasi Sisters were separated from SMA Congregation.
7. In 1916 Mother Mary Fortunat was appointed as the first Superior General.
8. In 1916 the Mother house & novitiate were shifted to Thandla from Ajmer.
9. In 1920 Prabhudasi Sisters were attacked by another fatal disease ‘pellagra’.
10. In 1922 the Founder gave them the first part of their official Constitution.
11. In 1930 the death of their Founder Rt. Rev. Fortunatus Henry Caumont.
12. On 15th August 1931 the Prabhudasi Sisters celebrated their Silver Jubilee at Mother house in Thandla.
13. In 1931 first vocation from south part of India (Kerala).
14. In 1936 first three Prabhudasi sisters sent for nursing training.
15. In 1944 Mother House Christ Raja Ashram at Madar Ajmer was blessed by Rt. Rev. Guido and PSA Generalate & Novitiate shifted to Ajmer.
16. First General Chapter of the Institute was held from 16th October 1953.
17. In 1953 Sr. Imelda was elected as the first Indian Superior General.
18. On 14th October 1956 the Golden Jubilee of the Institute was celebrated at Mother house Ajmer.
19. In 1960 second General Chapter and Rev. Sr. Perpetua was elected Superior General of the Institute.
20. In 1962 the Institute was affiliated to the great Franciscan Family.
21. In 1965 third General Chapter of the Institute and Rev. Sr. Perpetua re-elected the Superior General.
22. In 1968 sister’ dress changed into religious habit.
23. In 1972 the fourth General Chapter and Rev. Sr. Lucian was elected the Superior General of the Institute.
24. In 1976 the Institute was registered thereafter the Congregation was called “The Society of Prabhudasi Sisters Ajmer.”
25. In 1978 the fifth General Chapter of the Institute and Rev. Sr. Lucian was re-elected the Superior General.
26. In 1981 the Institute celebrated its Diamond Jubilee.
27. In 1984 the sixth General Chapter of the Institute and Rev. Sr. Ancilla was elected the Superior General.
28. In 1984 the Institute got the permission for final profession from Rome.
29. In 1987 the constitutions and directory were revised.
30. In 1990 the seventh General Chapter of the Institute and Rev. Sr. Ancilla was re- elected the Superior General.
31. In 1996 the eighth General Chapter of the Institute and Rev. Sr. Martina was elected the Superior General.
32. In 1999 the Institute was raised to Pontifical Right.
33. On 22nd June 1999 the Udaipur region was erected.
34. On 12th July 2000, the Ajmer region was erected.
35. In 2002 the ninth General Chapter of the Institute and Rev. Sr. Nirmala was elected the Superior General.
36. In 2004 changes in dress code to habit/sari and rosary replaced with crucifix and chain.
37. In 2004 division of the Congregation into two Provinces Udaipur Province and Jaipur Province.
38. In 2005 first Provincial chapter and erection of Jaipur & Udaipur Province. Rev. Sr. Maris was elected the Provincial Superior of Jaipur Province and Rev. Sr. Divya was elected the Provincial Superior of Udaipur Province.
39. In 2006 the Institute completed 100 years of its service and celebrated it at Ajmer.
40. In 2008 the tenth General Chapter of the Institute and Rev. Sr. Nancy was elected the Superior General.
41. In 2013 the 11th General Chapter of the Institute and Rev. Sr. Divya was elected the Superior General.
42. In 2019 the 12th General Chapter of the Institute and Rev. Sr. Joicy was elected the Superior General.
43. In 2020 the Mother House was reconstructed.