The proviso enacted therein does not indicate a different and alternative mode of recovery of the certified amount of tax but only confers additional powers on the Collector for the better and more effective application of the only mode of recovery authorised by the body of sub section (2) of section 46 and therefore there was no question of possibility of dis crimination at all; (iii)the further contention that section 46(2) of the Indian Incometax Act violates the equal protection clause of the Constitution and has thus become void under article 14 of the Constitution as section 46(2) required the Collector,on receipt of the requisite certificate from 889 the Income tax Officer, to recover the amount specified in the certificate as if it were an arrear of the land revenue and there are different laws adopted by different States for the recovery of land revenues and thus there is discrimination on the ground that defaulters are treated differently in different States is also without force be cause discrimination complained of is a permissible classification and does not offend the fundamental right guaranteed by article 14 as the grouping of the income tax defaulters in separate categories on classes State wise is a territorial classification which is based on an intelligible differentia and there is a reasonable nexus or co relation between the basis of classification and the object sought to be achieved by the Income tax Act.