Usually, the Gross salary components encompassed with the following sections.

BASIC : 35% of the Gross
DA : 5% of Gross
HRA : 40% of BASIC & DA
MEDICAL : INR 1250/- (Can avail Tax exemption till 1250)
CONVEYANCE : INR 800/- (Can avail Tax exemption till 800)
SPL. ALLOWANCE : Balancing amount

Note : The above mentioned structure is for the GROSS FIXED