"Relations between India and Iran are built on our civilisational and cultural ties that span centuries. We consider Iran a close friend and look forward to enhancing our relationship into a more collaborative partnership across diverse areas of our shared interest," he said in a message to Iranian President Hassan Rouhani.
"I am happy to note that our bilateral ties have strengthened considerably during your leadership of your great country. India believes that a fruitful engagement between our two nations will be beneficial for the stability and prosperity of the entire region," Mukherjee said
Iran is fifth major supplier of crude oil to India.