In spite of the detailed description of how to make pushpak viman available to them, KSP ( knowledge super power) has not yet come out with a plane of its own. It has to buy planes from not so intelligent country like Brazil. Perhaps the Vaimanika shasthra is too complicated that the KSP idiots cannot decipher it or the whole thing is hoax like other shasthras ( exception - kama sutra. no wonder there are ten born evry minute)