Monsoon rains will hit tip of Kerala around June 1 and retreat by September. Shares of agriculture-related companies gained after the weather department predicted normal monsoon rains for the current year raising expectations of higher farm output and rural incomes. Shares of tractor makers Mahindra & Mahindra advanced as much as 3.68 per cent and Escorts advanced 3.2 per cent. Fertiliser makers were also witnessing buying interest after weather department's comments on monsoon normal rainfall. Shares of National Fertilisers advanced as much as 4.47 per cent, Tata Chemicals rose 1.8 per cent, GNFC rose 3.2 per cent, GSFC climbed 3.2 per cent, Deepak Fertilisers added 2 per cent and Zuari Global rose 2.8 per cent.