Where did you get the value of $460 billion from ??? It looks very wrong, most reports put it at $370bn for Pakistan, ie Pakistan is just under 11 times smaller economically on a population difference of 1/7th to India. So, India has outgrown Pakistan by $1.4 trillion( 7 * 370 = 2.59 trillion - 4 trillion = 1.4 trillion of real outpacing growth on Pakistan ) in the last 20 years, ie just under 3 x Pakistan economy on average India has "added on top" in real terms to their economy.
Pakistan and India tracked at 1/7th population for 1/7th of the economy for the bulk of their history, and this has changed in the last 20 years as India took off and Pakistan f------d around with musical chairs of who can sit in the chair, with the Fauji also actively undermining Pakistan's economy to maintain "control" over everything and the whole money grab the Fauji thought was "useful" to Pakistan on the WOT ( and lost sight of the bigger picture ).
The economy of Bangladesh is considered to be about $475billion right now. They have the same black economy that India, and Pakistan also have btw so that cannot be execused away either.
Pakistan is the worst economic performer in the whole of South Asia ( I dont include Afghanistan as South Asia ) by every metric out there.
Even if some of India's figures are inflated( which is not what the report suggests, it suggest the opposite), they are not material tot the degree of difference there is now between Pakistan and India now.
Lets be real here.