Why does indian currency note have lion symbol on it

If you look at the Ashoka pillar at Sarnath (or a picture of it) you will find the capital of the pillar has 4 lions sitting back to back. The lion represents the attainment of Buddha-hood. The four lions surmounting the capital symbolize the kingship of the Buddha and his roar over the four directions. The four lions (one hidden from view) represent Power, Courage, Pride and Confidence.

Explanation:

c- companies fail to take environmental protection into account. i think