The cost of pursuing a postgraduate degree in the USA can vary widely depending on the university, program, and location. For most programs, tuition fees range from $20,000 to $70,000 per year, with prestigious institutions and specialized programs often charging on the higher end. When considering additional expenses such as living costs, insurance, and other fees, the total annual cost could range between $30,000 and $90,000 or more. For a master's in hardware engineering, particularly in reputed institutions, tuition alone typically falls between $30,000 and $60,000 per year. Living expenses in tech hubs like California or New York can push the total cost to $50,000–$100,000 annually. If you're serious about your goal, consider connecting with a good career consultancy service. They can help you with entrance exams (like IELTS, TOEFL, GMAT, GRE), paperwork, selecting a suitable college and course, and even improving your profile for scholarships. Some reliable services include IDP, ICC (Invicta Career Consultancy), and Y-axis. ICC, in particular, offers comprehensive support and aims to help you get into your dream college with a good scholarship. Best of luck!

This question is too broad to be answered objectively

There are a large number of variables that will influence the cost of tuition,living and other expenses.Ill try and cover a few of them here

1)tuition
is different for public and private schools 
Typically it is based on the number of credits you choose to take.Also the cost per credit varies from school to school
The swing in tuition fess could go from as low as around 15,000 $ Michigan tech university) a year to about 45,000 $(Stanford etc.)
Most Indian students however do receive a scholarship or a research position in the second year of their program which tends to take cover the cost of tuition of that year
However programs like Financial engineering etc which are only for a year have very few, if any such openings

Conclusion:check the office of the Bursar or the admission Faq's for each university you wish to apply to ,to get an accurate estimate of the cost of tuition

2)

Hello, 

For post graduation in USA new minimum have to pay in Indian Rupees is 40 lacs for your whole course and your accommodation.