1. Since the title of the property is in your name, apart from you, no other person, including your wife can be considered as the owner of the property, inspite of Rs. 1 Lakh paid from your wife's account.
2. Even if your wife files a case, you can show the record of deposit of Rs. One lakh to her account earlier in another transaction, which is your personal money only.
3. No doubt to say that you are the absolute owner of the plot in Telangana State.
4. There's no need of your wife's signature at the time of your selling the plot to a prospective buyer, since your name has appeared in the sale deed as owner.