What do you mean "we", human woman? But, seriously, Sitchin and many others believe we are the products of genetic manipulation by aliens (gods, plural, lower case, not "God').
Where they were supposedly from is uncertain.
BTW, in your (I assume Indian) ancient literature (Veda?) are tales of these aliens and their flying craft and wars.
See my profile page for a link to Sitchin's "Twelfth Planet" book to get you started if you are interested in more.