In the letter written to editor of a local Urdu weekly, Guru, who was hanged in Delhi's Tihar jail on February 9, asked Hizbul Mujahideen chief Syed Salahuddin not to be "ashamed of December 13" and stop terming the attack as a "conspiracy".
Editor of the Urdu weekly Shabnum Qayoom told PTI that he has been receiving Guru's letters and articles and is sure that this letter was written by him.
Asked why he did not publish the letter for four years, he said he did not deem it appropriate.
"I believe he was swept by emotions. He was not involved but he thought that as there was no way for escape, why not accept and achieve martyrdom. I did not think it was appropriate to publish the letter that time as it would might been taken as an evidence against him, but now that he is no more, I went ahead with it," he said.
He said as long as the Kashmir issue is kept unresolved, India and its rulers will have "temporary peace".