Aim: To identify submicroscopic interstitial deletions in azoospermia factor (AZF) loci in idiopathic and non-idiopathic cases of male infertility in Indians. Methods: One hundred and twenty two infertile males with oligozoospermia or azoospermia were included in this study. Semen analysis was done to determine the sperm density, i. e., normospermia (>20 million/mL), oligozoospermia (