A non hormonal induction of synchronization of estrus in ewes of Nellore breed, in two seasons June-July and September – October, covering 39980 and 42370 ewes respectively, spread over 2015 to 2019, with micro minerals (Bioplex High Seven), after onset of monsoon and deworming the sheep, appropriate to the season and type of prevailing parasitic infection, were studied. All the supplemented ewes came to estrus within a week, and were bred with stud rams. After the completion of gestation period all the ewes were lambed within a week uniformly. This may be due to elimination of stress due to environment, nutrition, parasites, replenishment of minerals and stimulation of folliculogenesis with Bioplex. The current extension method induction of estrus is safe, economical, easy to adopt and eco-friendly.