section 44ae

Thats w.e.f. 1-4-2019 :

(2) For the purposes the profits and gains from each goods carriage,—

 (i)  being a heavy goods vehicle, shall be an amount equal to one thousand rupees per ton of gross vehicle weight or unladen weight, as the case may be, for every month or part of a month during which the heavy goods vehicle is owned by the assessee in the previous year or an amount claimed to have been actually earned from such vehicle, whichever is higher;

(ii)  other than heavy goods vehicle, shall be an amount equal to seven thousand five hundred rupees for every month or part of a month during which the goods carriage is owned by the assessee in the previous year or an amount claimed to have been actually earned from such goods carriage, whichever is higher.