The tax treatment of main allowances which are generally given to employeesis given below. The list is not exaustive(complete).You may ask query about your allownace in comment section.
Dearness allowance :Taxable
City compensatory allowance: Fully taxable.
Project Allowance: Taxable
Fixed medical allowance: Taxable.
Servant/helper Allowance: taxable ,if helper is not used for official purpose.
Tiffin Allowance: Taxable .
Mobile allowance:Taxable as it is neither covered under 10(14)(i) nor under 10(14)(ii). However phone facility including mobile phone provided by employer free of cost is not covered under perquisites.
Fully Exempted allowances
Foreign Allowance: Exempt from tax if paid outside India By the government to the Indian citizen for rendering services outside India.
Allowances to Supreme court/High court Judges: Not taxable.
Servant/helper Allowance: Exempted ,if helper used for official purpose.
Partially Exempted allowances
Transport Allowance: means allowance to meet expenses incurred for office to home and home to office is exempted up to 800 per month maximum.1600/- Per month in case of employee who is blind or orthopaedically handicapped(see details in complete List)
Allowance to meet the cost of travel on tour or on transfer (including amount paid for packing and transportation of personal effects on such transfer):exempted to the extent allowances used for said purpose.
Allowance (know as DA in TA bill) paid for purpose explained in point above ,to meet the ordinary daily charges on account of absence from his normal place of duty):exempted to the extent allowance used for the said purpose
Conveyance allowance: To meet the expenditure on conveyance in performance of duties of an official nature: exempted to extent allowance used for said purpose
Uniform allowance: exempted to the extent used for the said purpose
Children Education allowance: Rs 100 per month per child up to maximum of two child is exempted if expenses made in India.
Children hostel allowance 300 per month per child up to maximum of two child is exempted if expenses made in India.
Allowance granted to employee working in transport system where no daily allowance has not been allowed to meet daily expenses, done to meet his personal expenses during duty performance from one place to other place: 70 % of such allowable exempted maximum up to 10000 per month.
Allowance granted for encouraging the academic, research and other professional pursuits: exempted to the extent used for said purpose
Hilly area, remote area, field allowances are exempted on various rate complete List given below.