problem: Recognize which of the given purchases is counted as the part of NI:
1) Tata motors buys tire from Good year to equip the new Indica.
2) Tata motors buy tires from Good year to replace the worn tires on executive’s company cars.
3) An individual buys 50 shares of Microsoft.
4) You bought a laptop from the USA.
5) Indian Statistical Institute provides Scholarship to the students.
6) Employee contributes to the retirement plan.
7) Maruti vends Zen from its inventory.