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18 years of experience in healthcare in India. Received formal training in obstetrics & gynecology and its various sub-specialities viz., Reproductive Medicine and Surgery, maternal- fetal medicine. Of the two first Indians to be awarded with degree of M.Ch. Reproductive Medicine and Surgery, the first formal sub-specialty training program in Reproductive Endocrinology and Infertility in the country. Twelve years experience in reproductive medicine and surgery.

Worked as a teaching faculty in the department of Reproductive Medicine and Surgery, in a University teaching hospital for seven years(sep 2015 to Sep 2022); Senior Resident for an year, and as Assistant professor for 4 years and 10 months, and Associate Professor for 1year and 1 month.

Was a co-guide for the Fellows’ research project, of the Reproductive Medicine fellowship program at SRMC & RI, for 4 years and 5 months (From April 2017 to Sep 202).


Extensively trained in monitoring of IVF cycles, oocyte retrieval and embryo transfer. Management of difficult cases of male factor infertility – Performing TESE, TESA, PESA and micro-TESE in Non- obstructive azoospermia. Evaluation and treatment of male sexual dysfunction.

Genetic & immunological evaluation, counseling, and management of couple with infertility, recurrent pregnancy loss and recurrent implantation failure.

Ultrasound in female infertility: follicular study, 3D & 4D evaluation, Doppler studies. Male infertility ultrasound: scrotal USG & doppler

Third party reproduction: donor gametes (oocyte & sperm) and surrogacy.



  • Director of Dept. of Quality management and Research at SNH-GFI 01/09/21 onwards
  • Associate Consultant and Associate Professor 01/09/21 to 30/9/22
  • Associate Consultant and Assistant Professor 01/10/16 to 31/08/21 Department of Reproductive Medicine and Surgery, Sri Ramachandra Medical College & Research Institute, Chennai, India.
  • Evaluation & treatment of male and female infertility problems, ART, and male & female sexual dysfunction
  • Assistant Physician and Senior Resident 30/09/15 to 30/09/16 Department of Reproductive Medicine and Surgery, Sri Ramachandra Medical College & Research Institute, Chennai, India.
  • Evaluation & treatment of male and female infertility problems, ART, and male & female sexual dysfunction
  • Junior Resident (in-training) 29/09/12 to 31/08/15 Department of Reproductive Medicine and Surgery, Sri Ramachandra Medical College & Research Institute, Chennai, India.
  • Junior consultant in Obstetrics & Gynecology 06/2011 to 08/2012 Siddhartha Nursing Home, Nellore, AP, India
  • Junior Resident (in-training) 04/2008 to 04/2011 Department of Obstetrics and Gynecology, JN Medical College, Belgaum, Karnataka, India.
  • Junior doctor in General Surgery 07/2006 to 02/2008 Siddhartha Nursing Home, Nellore, AP, India
  • Evaluation and management of surgical problems in men and women, under supervision.


  • M.Ch.: Reproductive Medicine and Surgery 2015
  • Sri Ramachandra Medical College & Research Institute, Chennai, India
  • MS: Obstetrics & Gynecology Jawaharlal Nehru Medical College, Belgaum, India 2011
  • Internship: CRRI program in Internal Medicine, General Surgery, Ob & Gyn, Dermatology & VD, Community Medicine, SVRRGG Hospital, Tirupati, India. 2006
  • M.B.B.S: General Surgery and General Medicine 2005
  • Narayana Medical College-Nellore, AP, India
  • Outstanding academic performances: Stood first in the University with 70% aggregate marks in the MCh Reproductive Medicine & Surgery, final exam. Awarded Kamalam Ramasamy Udayar gold medal in 2016 for the same.


  • Trained in Basic life support at SRIHER in 2016
  • Trained in Advanced cardiac life support at SRIHER in 2018.
  • Did observership in Andrology and Male Reproductive Medicine and Surgery, Division of Urology, at University of Miami-Miller School of Medicine under the supervision of Dr.Ranjith Ramasamy: 12/10/18 to 31/10/18


  • Delivered compassionate services in Reproductive Medicine and Surgery as per the hospital expectations
  • Being the first physician in the country to qualify in Reproductive Endocrinology and Infertility – provided a comprehensive care to couples with complex fertility problems
  • Rendered services in General Surgery and Ob&Gyn as physician assistant in India Ovarian rejuvenation by platelet rich plasma: standardized the protocol in the department. Management of thin endometrium by platelet rich plasma: standardized the protocol in the department


Paper Presentations in Scientific Meetings

  • Chetnat Andrology Colloquium (National) – Outcome of ICSI from surgically retrieved sperms (awarded 2nd Prize)
  • Fem 2014 – Correlation of serum Estradiol on the day of ovulation trigger to reproductive outcome in ICSI
  • Fertivision 2014 – Correlation of serum D3 FSH Levels on Reproductive outcome of ICSI
  • ISAR 2015 – Correlation of sperm DNA fragmentation index by TUNEL assay to reproductive outcome of ICSI
  • ISAR 2016 – The role of karyotyping in men with severe male factor infertility prior to ICSI
  • IFFS 2016 – Impact of adenomyosis on the outcome of ICSI
  • ISAR 2017 – The impact of incorporation of raised serum progesterone on the day ofovulation trigger into the freeze-all policy on the outcome of ICSI-fresh embryo transfer cycles
  • ISAR 2018 – The role of combining Day 2 Estradiol estimation with FSH in the prediction of the outcome of ovarian stimulation

Poster Presentation

  • ISAR 2014 – Outcome of ICSI from surgically retrieved sperms
  • TRENDO 2017 – Estimation of macroprolactin in hyperprolactinemia
  • Case Presentation in Conference
  • OGSSI 2013 – An unusual outcome of ovulation induction
  • OGSSI 2014 – Heterotopic pregnancy
  • ASRM 2018 – Co-authored a poster presentation with Prof.Sanjeeva Reddy: Estimation of sperm DNA fragmentation index in ICSI cycles: Does it affect the outcome?
  • ASRM 2019 – Autologous PRP for the management of thin endometrium in frozen embryo transfer cycles: would it improve the outcome?

Original Research

  • Sperm DNA Fragmentation by TUNEL assay in ICSI patient: 2013 – 2015.
  • Prevalence of Chlamydia Trachomatis IgG Elisa in Infertile women (Unpublished data) 2009 – 2011

Lectures in Conference/CME

  • OGSSI Midyear conference – June 2015 – Video tips in management of ectopic pregnancy
  • TAPISAR 2016 – DNA fragmentation index
  • FOCUS Dec, 2016- M.Ch .Reproductive Medicine & Surgery
  • MADRAS MEDICAL MISSION Annual conference 2017 – FERTILITY PRESERVATION – Established methods & acceptable methods in clinical practice
  • Faculty for IVF certificate course organized by SRMC – SMART-CART – Feb 2017, June 2017, Sep 2017, Feb 2018
  • ISAR 2018 – How will ART treatment of infertile father affect the child health?
  • YUVA ISAR 2018: A.DFI in infertility B. Difficult embryo transfer
  • FERTILITE 2018 – Embryo transfer technique + hands on workshop on mannequin
  • Jan 2019 – CME at SRIHER: The role of platelet rich plasma in reproductive medicine
  • Feb 2019 – CME at Nagamani hospital, Chennai– co-ordinator for quiz in basic ART
  • ICE 2019: Medical management of male infertility
  • TAPISAR CME JULY 2019 – PRP in infertility
  • Chetnat fertility colloquium: Antioxidants in male infertility(debate:For)
  • TAPISAR CME DEC 2019 – Proximal tubal obstruction

Panelist in CME/Conference

  • TAPISAR PG CME 2015, Chennai – Infertility case scenarios
  • TAPISAR CME 2016, Chennai – Infertility case scenarios
  • YUVA ISAR Dec-2016, Cochin – Role of clinician in IVF lab
  • TAPISAR STATE CME 2017, Chennai – Infertility case scenarios
  • MMM hospital CME, May 2017, Chennai – Female Genital tract anomalies
  • TAPISAR STATE CME 2018, Chennai – Infertility case scenarios
  • TAPISAR CME 2019 – Infertility case scenarios
  • ISAR 2019 – optimization of male factor in infertility 10.ICE 2019 – Endometriosis in infertility
  • ICE 2019 – Andrology panel
  • ACE 2019 – Luteal Phase Support and Manipulations in ART


  • Correlation of serum estradiol level on the day of ovulation trigger with reproductive outcome of intracytoplasmic sperm injection. Journal of Human Reproductive Sciences. Jan-Mar 2016; 9(1): 23-27.
  • Siddhartha N, Reddy NS, Pandurangi M, Muthusamy T, Vembu R, Kasinathan K. The Effect of Sperm DNA Fragmentation Index on the Outcome of Intrauterine Insemination and Intracytoplasmic Sperm Injection. J Hum Reprod Sci. 2019 Jul-Sep;12(3):189-198. doi: 10.4103/jhrs.JHRS_22_19. PMID: 31576075; PMCID: PMC6764233.
  • Tejas Gundewar, Monna Pandurangi, N Sanjeeva Reddy, Radha Vembu, Chitra Andrews, Siddharth Nagireddy, Ashish Soni, Vivek Kakkad, Exclusive use of intrasac potassium chloride and methotrexate for treating cesarean scar pregnancy: effectiveness and subsequent fecundity, Human Reproduction Open, Volume 2020, Issue 2, 2020, hoaa025, https://doi.org/10.1093/hropen/hoaa025.
  • Vembu R, Devi N, Reddy NS, Pandurangi M, Nagireddy S. Prevalence of Metabolic Syndrome in infertile women. Indian J Comm Health. 2019;31(4):561-564.
  • Nagireddy S, Reddy NS Pandurangi M, Vembu R, Muthusamy T and Kasinathan K. Adenomyosis is Associated with Sub-Optimal Outcomes in Fresh Embryo Transfer Cycles. Journal of Research in Medical and Dental Science 2021, Volume 9, Issue 2, Page No: 211-215.
  • Vembu R, Nandini Devi M, Nellepalli SR, et al. Impact of Body Mass Index on the Prevalence of Metabolic Syndrome among Infertile South Indian Women. Int J Infertil Fetal Med 2019;10(3):42–45.


Member of American Society of Reproductive Medicine, Endocrine Society, USA, European Society of Human Reproduction and Embryology and Indian Society of Assisted Reproduction Associate member of RCOG, UK. Member of Federation of Obstetrics & Gynecology of India. Member IAGE, India.


Dance, music: group chorus singing, martial arts, gymnastics, Swimming, Skating


Tamil Nadu Medical Council. Regd No.94790.(Active)

Lanuages Known: Telugu (mother tongue), Hindi, English, Kannada, Tamil.

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