Dr Sunil Raja Manandhar currently working as Associate Professor and Head , Neonatal unit  at the Department of Pediatrics, Kathmandu Medical College. He is working at Kathmandu Medical College Teaching Hospital over the period of 16 years. Over the period of more than 10 years, He is still working  in neonatal unit of Kathmandu Medical College as NICU Incharge . He is also working as Departmental Academic Coordinator and PG Coordinator of Kathmandu Medical College. He is also serving as  an External and Internal Examiner for Kathmandu University and BPKIHS , Dharan.

Dr Sunil Raja does research in Neonatology and Pediatrics. He has given Training on Neonatal Advance Life Support (NALS) and Essential New Born  Care Training to Doctors, Nurses, and Paramedics to different district and Zonal Hospitals of Nepal including follwoing districts Kathmandu, Lalitpur, Bhaktapur, Makwanpur, Nawalparasi, Arghakhanchi, Dhanusa, Mahottari,Morang,  Baglung, Kaski, Parbat, Banke, Surkhet.   He has 14 Publication  in National and International  Indexed Journals.His most recent publication is "Use of antibiotics in newborns with maternal history of premature rupture of membrane".  He is also General Secretary of Mother and Infant Research Acitvites (MIRA) , which is working for improvemnt of  Maternal and Neonatal health. He has served  as a General Secretary of Perinatal Scoiety of Nepal (PESON ) for 2015- 2018. He has delivered more than 50 oral presentation and Speech  in National and International Conferences since 2003- 2018. He has attended many National and International Conferecnes including Nepal, India, Bangladesh and USA. He has taken Special Leadership Training Course  on Maternal and Neonatal Health from T.H Chain Public Health School, Harvard University , Boston, USA on 2017.