Documents related to the last days of Netaji Subhas Chandra Bose and his death mystery have been released in London which also include parts of classified correspondence between the Indian and Russian governments on the whereabouts of Netaji.

The documents, set to be released in a phased manner by UK-based independent journalist and Bose's grandnephew Ashis Ray, debunk the popular notion that Bose entered into Soviet Union in 1945, the year of his death as per records, and comes ahead of Prime Minister Narendra Modi's proposed visit to Moscow later this month.

The set of documents includes material Ray claims to have collected in Taiwan, Japan, Pakistan, the National Archives in Britain and the British Library, as well as from the Indian and Russian governments and some intelligence documents.  

The first set of documents released claims to show two official exchanges between the Indian Embassy in Moscow and the Russian foreign ministry.