Though your question is not very clear, it appears that you have paid money to someone and you have proof about transfer of money to that person in the form of bank statements, and that person has given you post-dated cheques.
If this is the correct understanding of your question, then let me point out that if the cheques bounce, then you have to prove that these cheques were issued to discharge the debt or liability, i.e., the money due to you. In fact, there is a legal presumption in your favour and the court will presume that the cheques were issued for debt or liability. The opposite party, i.e., the person who issued the cheques to you, that the cheques were given for some purpose other than discharging the debt or liability.
In order to ensure that in case the opposite party does not give any false evidence in this regard, you should keep whatever evidence is available with you to show that these cheques were given to you to discharge the debt or liability, i.e., to return the money that is due to you. For this purpose, bank statements, conversations or letters of communications, etc., will all be useful.
Ultimately, it will be for the court to decide on the basis of appreciation of evidence furnished by both sides as to whether the evidence is sufficient. I have neither seen your evidence, nor that of the opposite party. So, I cannot comment on the value of evidence. But, I have mentioned the general legal background on this issue. You may consult some local lawyer by showing your documents / evidence.
Dr. Ashok Dhamija is a New Delhi based Supreme Court Advocate and author of law books. Read more about him by clicking here. List of his Forum Replies. List of his other articles. List of his Quora Answers. List of his YouTube Videos.