Money has been transferred from husband's account to wife's account over a period of 3 years (with and with out the knowledge of husband). Husband has bank statements showing the transfer of amount to wife's account.
How, without your knowledge and wthout your written instructions, the money from your account has been transferred to some other's account (may be your wife)? If it is a joint account and the instruction of transfer of amount s "Either or survival", then you cannot blame your wife for money transfer. If it has been done by forgery, then the most serious charges of S.420, 468 and 471 IPC will attract, which are more severe than section 498-A, which you are apprehending.
If you gave it as loan, you must show loan agreement to court to recover it and otherwise, you cannot recover it,
If you have given it to her or to her parents through her for purchase of land, you should show some documents to the court to such extent (even correspondence also will be helpful to some extentl), then there is some hope of recovering the amount. The most important document in this regard is power of attorney or at least some agreement asking them to purchase a land for your sake.
Otherwise, as per Hindu Code, there is obligation on the part of the husband to maintain the wife by providing the lifestyle in which he is living. So, the courts can presume that the amount which has been given to her (if you prove that fact) is to maintain herself. In law there is "Stridhan" and not "purush dhan".
At the end, I say Mr. Shonee's suggestion is worth to understand and follow. If you follow some of the other people, you will be in more mess than the present one.