The country's political discourse is likely to change after January 23 next year when the government unveils secret files related to Netaji Subhas Chandra Bose, BJP leader Sidharth Nath Singh said on Thursday. He also questioned as to why the Congress governments did not disclose the files so far. Singh, who was present during the interaction that Netaji's 35 family members had with Prime Minister Narendra Modi on Wednesday, said the decision to declassify the files was "historic" as it will help bring to light many things that have been hidden in the last seven decades. "The wait of 70 years has come to an end by the historic decision taken by Prime Minister Modi," he said. "The political discourse of the country is likely to change after January 23, 2016," he <g data-gr-id="10">added,</g> while referring to the decision to declassify the files on that day, which is the birth anniversary of Bose.