S1: The Indian Meteorological Department (IMD) was established in 1975. S6: These predictions have an effect on the Indian economy that belies any belief that the economy of our country is not solely dependent on agriculture and the rains that feed it. P: The Meteorological Department is perhaps also burdened with the most critical form of soothsaying i.e., forecasting the monsoon. Q: The Crop Yield Formation Unit of the department has developed statistical models using correlation and regression techniques. R: The IMD issued the first operational long range forecast of seasonal south-west monsoon rainfall in India in 1986. S: It is the natural meteorological service and the principal agency in all matters related to meteorology. The correct sequence should be: