There is nothing like Akhand Bharat Project. "Akhand" in hindi or sanskrit literally means "Undivided" and Bharat is the original name of the himalayan and sub himalayan land before greeks named it India or Arabs named it Hind based on river indus or sindhu. The name bharat is indeed taken from hindu mythology. The area extends from indus river basin in the west to perhaps entire Myanmar in the east including Nepal, Bhutan, sri lanka and other islands. It refers to areas which were under hindu/buddhist culture. This area was politically never one as many small kings ruled. Only king Asoka seems to have reigned over entire Bharat or if not, on most part of it. Later when muslims invaded, the land came to be mostly known as Hind or Hindustan and thats when people of the land came to be known as Hindus for following a particular set of religion. when British colonized the kingdoms of bharat, they called it India. india's nationalist movement was synonymous with her freedom movement. some overzealous hindus saw it as an opportunity to have their nationalism based on erstwhile Bharat. At the same time some insecure muslims feared that a democratic India will never elect a muslim ruler and since muslims ruled before the british, they thought of having a separate land for muslims. eventually in 1947 Bharat got freedom as 2 nations as India and Pakistan but much before that Sri lanka and Myanmar were treated as separate political entities and hence they retained separate identities/nationhood. Important to mention that Myanmar was never part of political mainland of india. And Nepal never got colonized nor muslim rulers showed any interest to subjugate Nepal, Bhutan so they remained independent always. Some orthodox and radical hindus feel that the land called Bharat should get united as Akhand Bharat, if not politically then culturally. unfortunately, this idea favours hindus, sikhs, jains and buddhists more and muslims & christians feel alien to it as thier religion has roots not in india but in midle east. Radicals in Pakistan and Bangladesh and also in India, use the term Akhand Bharat to create a fear that Hindus want to return to Vedic era where muslims and christians will have no place and that Pakistan and Bangla Desh will be subjugated and usurped by Hindu India.
When your head settles please ask someone to explain the "Ghazwa-e-Hind".
.India takes aid from developed countries ($2.4billion in 2013) and forwards some of it to other small countries($1.3 billion in 2013) which it wants to dominate, with a "From India" tag to make itself feel like a boss and a donor country. 
Man, India has some weird kind of hegemonic inferiority complex going on, but whatever floats your boat. 
