Lockheed Martin officials have said the hypersonic SR-72dubbed the Son of Blackbird by one trade journalcould fly by 2030
4 min read16 Jan 2018The Union Budget contains details about the estimated receipts and the expenditure of the government for a particular fiscal year. The Budget is allotted for the upcoming fiscal year, which runs from 1st April to 31st March of the next year. Here is a quick guide on how the Union Budget is prepared