1. If you apply for annulment on the ground that marriage has not been consummated then you can volunteer to undergo medical test to prove the same and also seek the medical test to be conducted on your wife, but if she has had intercourse before then medical test will be futile.
2. You can apply for annulment on the basis of suppression of her academic qualifications and employment status. You will have to prove that she does not hold the experience which she claimed earlier.
3. The scope of 498A and other criminal charges is high in your case as according to her she is a habitual cheater, but the court will give you an opportunity to contest the case to prove your innocence.