Is high tail set is a fault.Some dogs always keep thier tails high whereas some keep high when they interact with other males and some keep high while moving in the ring.
Please advice and share your views.Also advice if there are ways to rectify it

I don't think I have ever seen a high tail set. High tail carriages are common. It if is not too high, it is not a problem in the ring.

Always remember something Sally Bell said at a breeder seminar: 'it's a rudder, not a sail". So if the normal tail carriage looks like a sail, then it's not correct. Some young males do outgrow it, if they only have it high when excited or around other males.

Thanks anonbreeder,you are right that some young males are tempted to keep their tails high when they are excited or come across other males but i feel that it create a bad image of an excellent specimen.
Is there any remedy to rectify it or it will be settled with the age.

Time will tell if it will 'settle' - some never do and yes, not a pretty picture!