You will have to file a Execution petition before the same court which had passed the order/judgment. the execution petiton will be filed u/o XXI of Civil Procedure COde. Also find out details of properties of the Judgment Debtor as the same will be attached towards realisation of the amount.
I will suggest that you should engage a counsel in your area for better results.
according to Order 21 Rule 30 of Civil Procedure Code 1908,an execution application should be filed before same court along with the certified copy of judgement and decree thereafter court will issue a notice to defendent judgment debtor to so cause on your execution application but if execution application is filed within 2 years of decree then no so cause summons to judgement debtor is neccesary thereafter court will proceed to execute the decree by attaching the property of judgment debtor also by send him in civil jail.If judgement debtor satisfy the decree,court will exonerate him from execution.