Hi Divakaruni,
First of all, there is nothing like uniform salary break up which can be applied to all the organization. It differs from company to company and even within the same company it can differ on the basis of position / scale as well.
Normally, In any salary structure there are components like Basic pay, DA, HRA, Conveyance, medical, LTA among others . Then percentage of HRA, DA can also differ. somwehere, its 50% of basic pay and somewhere its just 30% or 40%. Then, Medical and LTA should not exceed 1250/- p.m as this is the limit for tax exemption.
I suggest for the clarity, you talk to your HR head and see which kind of salary structure is already in place or which kind of break up suits your company objective and structure. Your salary break up should be competitive in view of the industry you operate in.
Hope it helps.
Nidhi