Onset of Monsoon

1: (c) First week of June, 2: (a) Two, 3: (b) Northeast, 4: (c) Northwestern part of Ganga Plains, 5: (d) First week of July, 6: (a) Himachal Pradesh, 7: (c) First week of September, 8: (d) Mid-October, 9: (d) Early December, 10: (a) First week of April