Signature forgery

Issue at hand: The petitioner has produced a false document of lease of Rs 20 lakh, after I have sold the said permises some 7 years back. The date of sale predates 1 year from the date of the false document executed by forging my signature. In this case, can anybody help. Under what section case need to be filed and in which court? As per my limited understanding, this case need to be filed in civil court, ie magistrate court. Further clarification needed is. Is vakalathnama need to be filed? Does title sheet need to be filed. Under what section shall the petition be filed. How to ask court to ask forensic department investigate the matter. How much fees will I have to pay to the court? How much compensation can I claim, as the signature is forged? In that case under which section shall I ask for compensation. Under which section shall I ask the fraudster to be jailed? I am handling my case without advocate. If someone could be kind enough to help. Thank you.