India has handed Pakistan detailed evidence on the Mumbai attacks that includes information on interrogations, weapons and data gleaned from satellite phones that officials say proves that Pakistani "elements" were behind the deadly siege.

Indian authorities said the evidence handed over Jan. 5 shows that Pakistan-based militants plotted and executed the attacks, but a top diplomat said the gunmen may also have had ties to Pakistani authorities.

The Mumbai attacks began Nov. 26 and lasted for nearly three days. The 10 gunmen attacked 10 sites across India's financial capital, killing 164 people.