"I don't believe that Netaji died (in air crash). This is my opinion as individual. We don't know whether he is still alive or not. May be not as it had been so many years. It is a shame for the entire country as the truth is yet to be unveiled," Banerjee said.
She was speaking at a programme here commemorating the 75th anniversary of Netaji's great escape from Kolkata.
"I think the Russia angle needs to be probed. I want an answer regarding it," Banerjee added.
"Lots of things are being said about country's foreign policy. We need to abide by it. But we also need to look into the Russian aspect into Netaji's disappearance as it is said that there are lot of files regarding Netaji (lying) there," she maintained.
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"Prime Minister Narendra Modi had visited Russia. I don't know whether this matter came up. Was there any discussion with the Russian administration after we declassified the files. I think India must take it up with Russia," Banerjee said.
Banerjee regretted that Netaji's disappearance mystery is yet to solved.
"A person dedicated his entire life to the nation and the nation couldn't find time to reveal his truth?," Banerjee said.
"Today people are demanding answers about Netaji's disappearance and it has to be honoured," Banerjee said.