Consider the following statements relating to the free coaching scheme under the umbrella scheme ‘SHREYAS’: 1. It provides coaching of good quality for economically disadvantaged SCs, OBCs and Minorities. 2. The ceiling of total family income under the scheme is Rs 8 Lakhs per annum. 3. The ratio of SC and OBC students is 70 : 30 and 30 percent seats are reserved for females in each category. 4. The ratio of SCs, OBCs and minority students has been fixed at 50 : 30 : 20. How many of the statements given above are correct?