The majestic zebu bull, with its heavy and wide curving horns, is the most impressive of the Indus seals. The Zebu motive is found almost exclusively at the largest cities of Mohenjo-daro and Harappa.

The zebu bull symbolizes the leader of the herd, whose strength and virility protects the herdand ensures the procreation of the species or it stands for a sacrificial animal. When carved instone, the zebu bull represents the most powerful clan or top officials of Mohenjo-daro and Harappa.

In another historic exploration , the worship of Shiva and Nandi can be traced to even Indus Valley Civilization time period. Amongst various bull seals which were found in Mohenjo-daroand Harappa , researchers concluded that this Zebu Seal might just be the origin of Bull | Nandi worship.

Nandi is the name of the gate-guardian deity of Kailasa, the abode of Lord Shiva. He is usually depicted as a bull which also serves as the mount to the Lord Shiva.