Minister of State for Home Jitendra Singh said investigation in India on Headley`s involvement in terrorist acts here was complete.
"The transfer of some evidence from the USA is awaited.
Similarly, transfer of evidence from Pakistan with regard to some other accused persons is awaited. The final report in the case accordingly will be filed in the competent court," he said.
The Minister said on the basis of the examination of Headley in Chicago and on other revelations in the case during investigation, two Mutual Legal Assistance Treaty (MLAT) requests to USA and one Letter Rogatory request to Pakistan were sent.
"The MLAT to USA stands partially executed and evidence was transferred to the National Investigation Agency," he said.
The Pakistani American national had conducted surveillance of the 26/11 Mumbai terror attack targets for LeT. Headley has pleaded guilty to plotting the attacks. Subsequently, he had entered into plea bargain with the US authorities.