Slum dwellers were relocated outside the city, garbage was used to produce electricity and fertilizer, and polluting vehicles were banned as were smoke - producing open - air ovens.
दशक १९९० की शुरूआत में भारत में बहुत अंतर्राष्ट्रीय निवेश हुआ और कलकत्ता पीछे नहीं रहना चाहता था ।