God tells us that any anger that is done for the sake of others and for the benefit of a greater good, will bind punya.
Now in the kramic path (the traditional step by step path to Self-Realization), religious disciples live under the fear of being reprimanded by their guru. The guru’s eyes become red with anger. Yet, because he becomes angry for the welfare of his disciples, the guru binds punya. Can you imagine how much suffering they have to endure? How is one ever going to be liberated? Liberation is not easy. Only on a rare occasion does one attain something like Akram Vignan.