Hi Anjaneyulu,
Local Microsoft training providers may be your best bet here as it will need to be structured learning to learn the intricacies of Active directory, the trainer will need to have extensive knowledge of Active directory and you will still give you the face
to face ability to ask questions. The training provider may be able to offer one to one classes but this may then become expensive.
Please go to the following link to find a training provider near you:
http://www.microsoft.com/learning/en/us/training/format-classroom.aspx
Alternatively you may be able to discuss with local businesses the opportunity to do some voluntary work experience with their sys admin.
Regards
Kevin