TOEFL

As for reporting, the scores will be reported to the selected university everytime you take the test. However, the best score from both the attempts will be considered by the universities. It is very much similar to the concept of betterment exams in India.

Hi Damana,
Since you know its late you should be searching for universities having deadlines and prepare your application without more delay. You may find options till Nov or Dec.

Australia is indeed a very good option to pursue Masters. Also, job opportunities are great in Australia.

Yes, you can. You need to score 65 percent marks in engineering.

Both have different formats of studying. For CAT, you need to focus on data interpretation, logical reasoning and verbal aptitude with as much as mock exams you can give.
For TOEFL, you need to focus and practice your speaking and hearing skills and need to be well versed with words and synonyms.

IELTS is conducted by British Council so most of the German universities prefer IELTS.

Dear Karthik,
TOEFL is accepted too but IELTS has better preference in Europe.

Yes, USA is always the best, but you can prefer Germany, if you don't want to spend too much money. You should also learn German, at least up to A2.

Oxford University also accepts IELTS score. I suggest you to appear for IELTS test only; TOEFL score will not be accepted for UK Visa.

The registration fee for TOEFL is $170, which would roughly translate to Rs. 11,000 to 11,500 (approx).
GRE cost for just signing up is $160 or $190 i.e around Rs. 12000.