Original: Mir Jafar is widely reviled by the people of Bangladesh, India and Pakistan. The word "mirjafar" in Bengali and the phrase "meer jafar" in Urdu, are used much as quisling is used in English, and Jaichand of Kannauj in Indian history.
Simplified: His memory is widely reviled by the people of Bengal and Pakistan; the word "mirjafar" in Bengali and the phrase "meer jafar" in Urdu are now synonymous with traitor, used much as quisling is used in English.