SAT

You can appear for SAT after 11th and 12th. Means you can appear once after 11th as well.

Dear Manash, Associate degree is not the same as BBA. What you are planning to do is bachelor degree actually. Associate degree is equivalent to HS and you must take SAT and TOEFL to pursue any bachelor degree in US. An upper first class is recommended.
Best wishes

Dear Ashutosh, you need to visit the university websites for such information. Look for the university ranking on QS Ranking or US News Ranking and you will find the details updated easily. Always be well researched.
Best Wishes

Hi Riwin
For undergrad admissions to USA and few other European countries, taking SAT helps in scholarships as well as better profile. The basic SAT includes math and verbal ability section and can be prepared well by coaching. Subject based SAT or SAT -II are rigorous and require lot of preparation. You may check the recent changes in SAT pattern on the internet and I would suggest you to take a mock test at their official website, collegeboard.org.
Hope this helps

Hi
SAT is required only for undergrad, for master's you should prepare GMAT and TOEFL / IELTS anf get atleast 7 band score to be in a good college. Also, take some internships to make your profile complete as mba in most of the countries requires some work experience too.
Hope this suffice.

Hello Naaz, SAT is taken for admission in US universities ( UG programs) mostly while other countries also accept SAT scores, though not mandatory.Will urge you to check collegeboard site for SAT details. To take the SAT you must create an account that is register online. Test dates are also available on the collegeboard portal. Hope this helps!

Yes, but only for non-indians or NRI's. the fees for them is very high. they need to pay fees in dollars. 2 years back the fees is 1500$ for foreigners admitted through SAT and 25,000 for Indians per semester. It might be a little higher now. At my institute NIT Durgapur, we have people from Nepal Mauritius Kuwait Russia Angola, Mozambique, Ireland, Egypt England . I personally know people from these countries. To my guess to get an admission your SAT score should be around 2300 or above.