There was a comment posted here, which says:
Each day of Brahma has 14 Manvantars and each Manvantar has a different Indra. We are currently in the 7th Manvantar of the 51st day of Brahma and his each year has 360 days. So there have been (50 x 360 x 14) + 7 Indras in total! – Amrit Dhara Apr 29 '19 at 6:50
There are a lot of discussions on Indra. Also there is a mention of he being adulterous. So this creates my question that which Indra was adulterous among these?