Bageshwar Dham Sarkar
Is it a sin to criticise or even listen to criticism of others?
Do not criticise what you do not know
Criticising or listening to criticism of Bhagwan Vishnu or Mahadev brings a sin equal to killing a cow. Do not criticise anyone you have not known or understood.
Never criticise someone you do not know about, whom you have not understood, whom you have not even seen.