I was interested in Germany France Australia etc in b. Tech and when we given a sat after 12th or when???

The SAT test is held seven times a year in the US and six times internationally. It is held in the months of October, November, December, January, March, May and June.

For detailed information, you can go through the below article and let me know if you have any doubt -

https://studyabroad.careers360.com/sat-registration

I am in 11 std so can i give now or next year and the exam qualify student take admission in abroad and in America ? And the exam is online??

You can give SAT exam in India as there are no specific eligibility criteria for SAT 2017.
Since SAT is taken for admission in colleges, students are advised to take the test when they are in junior or senior high school. You can check the eligibility criteria below as well -

https://studyabroad.careers360.com/sat-test-eligibility

Also, The SAT Test is taken in two types: SAT Reasoning Test and SAT Subjects Test and the exam mode is offline.


https://studyabroad.careers360.com/sat-test-pattern

Good Luck!!!