Ovulation Predictor Kit is famous for tracking most fertile days so that a couple can plan according.. Dr. Anubha Singh(https://www.elawoman.com/delhi/doctor/dr-anubha-singh) has listed some factors about OPK.. She is associated with Shantah Fertility Clinic (https://www.elawoman.com/delhi/clinic/shantah-ivf-centre-vasant-vihar).Dr. Kaberi Banerjee(https://www.elawoman.com/delhi/doctor/dr-kaberi-banerjee) is yet another famous doctor in this field with practice in Advance Fertility and Gynaecology center(https://www.elawoman.com/delhi/clinic/advanced-fertility-and-surrogacy-center-lajpat-nagar)
