Five relatives of Pul in an appeal said, "It is very unfortunate and distressing for the family that the note is being used by some individuals for vested political interest."
"We strongly oppose any misuse of the note for political purpose as it is a very emotional issue concerning the whole family and we believe that no person or individual has the right to exploit or play with their emotions," they said.
Pul had committed suicide on August 9 last year at his official residence.
"Gradually, we have been learning to move ahead by coming to terms with the sorrow, pain and grief but the latest development has yet again jolted, shaken and disturbed the whole family," the appeal said.
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"Since the issue is emotive, sentimental and soulful for the family, it should not be used for vested political purpose," the family said.
"We hope that since the matter has been referred to the
Home Ministry, everything will come out in the open in the days to come," they said.
Appealing to people to maintain calm, they said as the matter is sub judice and under investigation, drawing any conclusion at this juncture would be premature and inappropriate.
The members also appealed to the state government to immediately provide security to Dangwimsai Pul, the first wife of the former chief minister, as according to media reports, she has been receiving threat calls.
The committee has been demanding CBI inquiry into the contents of the note.
"We request the people not to donate any amount to the committee which we believe will be an insult to the departed soul," they said in the appeal.
The contents of the note were made public by a news portal on February 8.
The note which was found near Pul's body by the police mentions several "deliberate irregularities" by the state leaders and Supreme Court judges over the years.