Medical re-imbursement upto Rs 15000 is exempt.LTA,once in two years will be exempt if you travel to any place within India.The amount exempt will be the shortest route economy class airfare or the amount spent,whichever is less.Travelling allowance for travelling to office and back to residence is exxempt upto Rs 800 per month.Conveyance allownace to the extent used for official purposes is exempt from tax.Basic and DA are fully taxable.If you pay rent,plz also try to get a reasonable amount of HRA.