I Know people from Google have asked us not to put Scrollable view inside another Scrollable view but is there any official statement from them directing us not to do so?
Its not only that Google says its bad practice, it just doesnt make much sense. Supose you have two vertical scrollable views nested one inside the other. When you move you finger over the scroll views, which one do you want to move, the inner or the outer one?
You should rethink your UI desing to something that does not require this, there a many ways to make a great UI and still keep it really simple.