SAT

Hi Rohit,
First you need to choose course and country and also share your educational qualification to guide you better. SAT/ ACT etc. are only required in USA and may be Singapore. IELTS is required by most of the countries.

Hi Viren Singh,
You don't have to take GRE and SAT at the same time because SAT is for UG course and GRE is for PG programs, these tests are mainly for USA. So, first you decide what to study and then appear for the exam.

Dear,
The SAT score eligibility varies from university to university. An ideal new SAT score in my view is 1200+ (higher the score, better it is) and with this score, you may target good universities in the US. As for TOEFL, it is more of an English assessment test rather than a competitive test. An ideal score for a UG course would be 80+ in TOEFL with no individual band less than 20. I'm not sure what you meant by "direct admission" and therefore cannot comment on the same.
Hope this helps.

Hi,
Yes, but the university will eventually check your 12th percentage also when making a decision. You can check this website, it mentions the college names and scholarship amount for specific SAT scores. Please browse through the website given:
http://www.guaranteed-scholarships.com/

Hi Sachin,
There is no set eligibility except that you must be a high school student. Vikas has already provided you the links you need to check for registration so please follow the website. Create your account on collegeboard website, pay the fee as and when you schedule the test. The international SAT fee is $45 + Non-U.S. Regional Fee, for students from India the Non-U.S Regional fee is $49. More information will be found here:
https://collegereadiness.collegeboard.org/sat/register/international/fees

SAT is held many times a year. You will find SAT test dates on the college board website.
https://collegereadiness.collegeboard.org/
Yearly test dates, registration information, fee information, etc., will all be found on this website. For upcoming dates, you can check this page:
https://collegereadiness.collegeboard.org/sat/register/international

Hi Nitin,
It is possible to take your SAT but it makes no sense taking the SAT since you won't be eligible to apply for any universities without passing class 12th.