You will need to describe the value of yoga since time immemorial
how hot yoga is very useful
you need to say that you practice yoga regularly{even if you aren't!!} and mention the ways how you keep yourself fit by practicing yoga 
1 5 1
i hope thats useful
and the examiner shall ask you questions related to your shall keenly answer the questions as they are very important. your partner will ask you some questions on the same too. be careful. best of the way ,in which class are you studying?
I'm studying in class 8
ASL in class 8!!!really???