Cross examination is a very tough Job. A large number of cases have been lost because of wrong questions asked during the cross. It will be better to let your advoacte handle the same.
The best trick for a cross examination is to ask leading question, which can be asnwered in yes or no.
You need to control the witness. It is really tricky.
The Value of Land and property is very high. If at all this was gifted, there must be some transfer documents. These documents are good enough to prove whether the allegation is true of false.
Questions starting with What, Why, Whom should not be asked, as they give a chance for the witness to explain, his case.
In direct examination you ask a question, the Witness explain the situation. For E.G: On 26/09/2012, Where were you?
In cross Examination you tell a Situation, the witness answers in Yes or No.
For e.g. on 26/09/2012 you were at Ice cream parlor. Answer will be Yes or No.
Frame your questions based on petition / complainant and exmination in cheif