Varanasi, Dec 14 (ANI): Norway's ambassador to India, Eivind S Homme, met mayor of Varanasi Ram Gopal Mohale to take forward Prime Minister Narendra Modi's cleanliness campaign in the temple town. He added that the river which flows through five states cannot be made filth-free unless the cleanliness drive is taken seriously in all of them. Meanwhile, Homme said it would be a learning experience for him.