he obtained the four vĕdhas (from supreme being) —

four vĕdhas (in the form of rig, yajur, sāma and atharvaṇa) —

for the four vĕdhas —

 by vĕdhams which are of four categories —

 vĕdhams which are categoriśed into four —

the four vĕdhas’ (sacred texts —

 brāhmaṇas —

experts in four vĕdhams —

 experts of four vĕdhams —