Which animal was not known to the Indus people?

They tamed a variety of animals and employed them for a range of uses. Animals such as sheep, goats, buffalo, boars, humped and humpless bulls, dogs, cats, pigs, fowls, deer, tortoises, elephants, camels, rhinoceroses, and tigers were among them.
Nevertheless, there is little archeological proof that the Indus Valley Civilization's inhabitants were accustomed to seeing lions. This may be because the lion was not indigenous to the regions where this civilization thrived, or it might not have played a major role in their economy or culture.
Therefore, it is correct to state that the inhabitants of the Indus Valley Civilization were unaware of the lion based on historical documents and contemporary archeological data.