Deduction under income tax act

hi friends,

whether shall we deduct the Alimony money paid at the time of divorce is deductible under income tax Act?

whether such alimony money paid to spouse as one time settlement (like Rs5lakh) is deductible?

or

maintainance cost paid to child (on monhly basis or full time settlement) after the divorce is deductible under personal income tax.

or shal we claim deduction under any provsion of the income tax Act.

pl clarify