you have to compute the taxable income of employees taking into account their earnings projected for 12 months and allow deductions after getting declaration and apply the slab rates to find tax payable and divide the tax by 12 to deduct the same from employees each month
30000*12=360000 assume no exemptions and deductions no tds upto 250000/= on the balance 110000 @ 5%=5500 minus 87a rebate 2500=3000 +3% cess=90 rs total 3090 divide equally by no of months left over