• “Sister Renal Center” by the Department of Nephrology of Arkansas University, U.S.A.
  • Fellowship Exchange Program with Cleveland Clinic Foundation, Ohio, USA since
  • Cincinnati Children’s Hospital Medical Center (CCHMC) for developing advanced paediatric service, training and research in the field of paediatric urology and its allied branches since
  • University of Southern California since
  • Hamad Medical Corporation, Doha, Qtar
  • Tribhovandas University Kathmandu, Nepal
  • Bangladesh Association of Urological Surgeons
  • Indira Gandhi Academic Center, Patna, India
  • Stanley Hospital, Chennai, India
  • Tirupati Hospital, Tamilnadu , India