The Indira Gandhi government had refused to set up a fresh inquiry into the mysterious death of Netaji Subhas Chandra Bose as demanded by a large number of MPs in 1968, according to documents released on Tuesday.An unstarred question No.1408 raised in the Lok Sabha in February 1968 was answered by the then government, saying there was no need for a fresh probe."The government has accepted the conclusion of the official inquiry committee appointed in 1956 that Netaji Subhas Chandra Bose met his death in an air crash in the year 1945. Since no new facts have been brought to light, the government does not consider that any fresh inquiry is warranted," it said.Prime Minister Narendra Modi on Tuesday released the second batch of 50 declassified files relating to Bose.The first batch of 100 files, after their preliminary conservation, treatment and digitisation, was put in the public domain by Modi on January 23 on the 119th birth anniversary of the freedom fighter.