President Pranab Mukherjee expressed confidence that India will soon achieve 8 to 9 percent annual growth and become a three trillion dollars economy.He asked social scientists to identify how growth can be achieved without destruction of environment. Mr. Mukherjee said climate change and erratic behaviour of the Monsoons would have tremendous consequences for our country and people. He asked scholars to come up with corrective measures. President Mr. Mukherji was speaking while inauguration of of the 40th National Conference of the Indian Sociological Society at Mahatma Gandhi Kashi Vidhyapith University in Varanasi yesterday. Speaking on the theme of "Development, Diversity and Democracy",the President said, India's social scientists should critically evaluate our successes and failures. There should be clarity on what is the meaning of development, he said. Does it mean only GDP growth or also include elements such as Gross National Happiness as adopted by Bhutan, he asked.