Vrindaban does not require to be modernized because Krishna’s Vrindaban is transcendental village. They completely depend on nature’s beauty and nature’s protection. The community in which Krishna preferred to belong was Vaisya community, because Nanda Maharaja happened to be a Vaisya king, or landholder, and his main business was cow protection. It is understood that he had 900,000 cows and Krishna and Balarama used to take charge of them, along with His many cowherd boy friends, and every day, in the morning He used to go out with His friends and cows into the pasturing grounds.
From Srila Prabhupada’s letter to Hayagriva — Montreal 14 June, 1968