how much money should i earn to make my living in usa?

I think you would be needing a lot of money, specially, if you compare with Indian standards. You see, there are lot of differences in both countries. One Dollar is more than 40 Rupees, inflation rate in USA is much lower than in India but prices of many commodities is higher in USA. Cost of labor is also very high in USA. So to have a better idea, you can research on internet and draw up comparison of every commodity and service you are using in India and want to use in USA also.

There are many variables in the determination of the quality of life particularly when you compare India and the USA. I note that you live luxuriously in India. As you are aware - India's per capita income is $978 and here you can see the per capita income for different counties in the USA http://en.wikipedia.org/wiki/Highest-income_counties_in_the_United_States This should give you an indication of the levels of income if you wish to live luxuriously in the USA. Cheers and all the best.