Literature of the diasporas comprises works on and by various writers and critics taking into consideration different theoretical and conceptual frameworks which can be applied to such writings. The people displaced out of their fantasies of new lands, imagination of a better future, along with the nostalgia of the homeland come across a feeling of alienation when they are living as expatriates. The same notions have been explored by some critics in the novels of Khaled Hosseini. We witness that the term diaspora is sorely described as the People living outside their original homeland. Amongst these some are writers or authors composing various books and novels and so, rising with a notable literature. Hosseini is amongst such remarkable literature seekers. Devyani Agarwal in Writing of Khaled Hosseini: depicts that Hosseini, being an author in a non homely environment has kept his remembrance alive of his native land which is seen in his writings and that’s what we seek in a diaspora.The main concerns of Hosseini is the exodus of Afghan people in order to protect them and families against the torments, lynching, brutality, hanging, rape etc. Divakaruni's works are to a great extent set in India and the United States. It frequently centers around the encounters of South Asian diasporas. She composes for kids as well as grown-ups and has distributed books in various types, including practical fiction, verifiable fiction, enchanted authenticity, legend and dream. Alexendra Andrews in his thesis (Re)Defining Afghan Women Characters as Modern Archetypes using Khaled Hosseini’s A Thousand Splendid Suns and Asne Seierstad’s The Bookseller of Kabul.describesthat howThat how thirty three years of turbulence has been depicted by Khaled hosseini during the phase of insurgence in Afghanistan through A Thousand Splendid Sun. The story revolves around two prime women characters Laila and Mariam and how the culture of Afghanistan and war affected their lives has been shown by Hosseini. The words and sentences have been used in such a way that it gives a live experience or to be a part of the story while reading. The entire struggle to survive and interconnected lives of the two women leaves the reader to the sentimental grounds. Thus, the reviews range between the ideas taking various South Asian diaspora in general and only in a limited sense taking up works of Khaled Hosseini for investigation.

Features of Diasporic sensibility
While embarking upon the world of diaspora, we should be able to elucidate the vital as well as the peculiar feature of diaspora that can adhere to comprise a precise sensibility accordingly. It sometimes becomes quite intricated which makes it elusive to severals, thus, the importance to understanding of the features of diasporic sensibility.
Diasporic sensibility becomes poignant when it comes to the terms of reminiscence. For some it becomes exultation and for few its revulsion. Therefore, it shows the contrasting ideologies apparently. It is different for various incumbents dispersed such as lawyers, doctors, teachers and different for authors or novelists. While for indentured laborers it is much more complex. The highly educated professionals left India to find jobs so as to gain much more wealth as they were not stipend in their respective homelands, which in turn led them to surge for more wages and seemingly dispersion. Authors or novelists moved for profound knowledge so as to clear vague opinions.
On the other hand, the third kind of migrants or the indentured laborers who resided in the Netherlands and also the ones who got evicted or total expulsion out of East Africa, ended settling in the U.K. and Canada. The reason for all these migrations was both political as well as economic. Despite all this, there was still the sense of returning to their homelands alongside with the common consent. This innate desire was unrequited and shows the diasporic sensibility amongst the major of the Diasporas.
There is a natural difference between the diaspora condition and the reactions of the migrants to that situation of such reactions. The difference resolves around the response of the FIRST GEN. and their SECOND GEN.Diasporas.
First Generation and Second Generation Diasporas
The world first means the sects that have actually immigrated to a host country. On the other hand, the second generation diaspora usually means the children who are born in a host country to immigrant parents.
Alba and Waters contends that the generation of second era generally categories the children  who groom in immigrant homelands, either being part of it at a young age or took birth in the respective society.
So, from the above cited description we can speculate that the children born outside the encompassing federation or at quite a young age immigrate i.e. twelve years or earlier receiving education abroad.
Those children, who are born outside, hardly have sense of their homelands and don’t even know that they are emigrants because they have never made their way to homelands but knew what it means to be an inhabited migrant.(Hirji p.3-11)
First Generation Diaspora in America
The first generation Indian Americans are always acutely aware of the apparent cultural differences between India and America. There are approx. 1.8 million people who  were resident of India have migrated to the U.S., illustrating U.S. to be the third largest group of immigrants followed by the Chinese born and Mexican born immigrants. This is basically the young generation of the first era and comprising the age group of 38. Amongst, Eighty four percent were the maximum number of migrants from India that belonged to the working class i.e. the age group of 18 to 64 which was even way higher than the United States accumulated population nationally (63%) or even the population of the first generation as shown in the series of RAD. People with 65 years and older were nine percent and under 18 years of age lie in 7 percent.
Second Generation Diaspora in America
While evaluating the generation of second era than around 80 lakhs individuals of the United States has one parent as an Indian amongst which under 18 years old were about 69 percent having eleven years of age as a median. Holistically, maximum diasporas tend to marry within the community only, fourteen percent only had married the outsiders. Thus, around Eighty four percent have Indian fathers and mothers. Diaspora depends upon the present global conditions too to decide their actions.
The Present Global Scenario related to Diasporas
There are several reasons which perturb the diaspora in the present day globalized world but prevailing sense of insecurity amongst the diasporas is a big reason to worry. Various things can be accounted for insecurity, which include:
Human Terror and Anti-Social Elements
One of the most vital concerns is of the security before leaving their homelands. Highly intellect professionals bifurcates Nations on the basis of wealth as well as security. Nations are prioritized which are highly bothered of such issues. Emigrants want to reside in such ambience where they should be quite far away from the periphery of the anti-social elements such as, terrorists, graffiti, groupism, drug active people etc. The mobility is less likely in Libya, Somalia, Syria, Afghanistan, Iraq etc. Henceforth, human terror and anti-social elements are an obsession when it comes to the ground of dispersion.
Prejudice
Prejudice is traditionally the emotion that depicts the negativity towards a group or a particular person arising a thought which are different for different groups comprising emotional components too. As for an instance, it is sometimes marked by a sense of aversion or revulsion for some specific section of society, ill temper by others and else by apprehension. Hence, aspects related to nations towards migration plays a vital role too.
Less Job Opportunities
Generally people are less inclined to such Nations which are not sufficed with adequate job opportunities, so the migrants lures towards that which affords to provide proper facilitation
Natural Calamity
The milieu also determines the abode factor for the immigrants. If they find the ambience in accord with their lifestyle then the migrants find it difficult to sustain to such environment and hence succumbs.
The above cited points are some reasons that tend an individual to explore his/her needs accordingly in order to fulfill what they desire hopefully as a prominent positive prospect, migration is not limited to South East Asia people only but to the civilization of entire world laying emphasis that needs are what that everyone is after up to and that even can be voluntarily and in some cases forcefully too.
From the above analysis it is concluded that due to the high density of population in South East Asia, human beings migrate more to meet their needs. Migration from a populated country like India is increasing at mass level.