y all of u so confused .......
sec- 40A(3) clearly talks abt ONLY disallowance of any payment of REVENUE EXPENDITURE exceeding the limit (either 20000/- in case of all paymen  or 35000/- in case of payment of transport) ??
Purchase of Truck is a Capital expenditure ????
so where is the question of Disallowance???
again y r u going 4 the intention of law as many sections r introduced in the ACT which makes no sense at all..
still there r so many loop holes in many section..
and which leads to huge TAX evasion....