I sent the following to Dr Katoch on Monday, May 7, 2012. I haven’t received an acknowledgement.
UPDATE May 12, 2012: Please also see the petition from Nilanjan’s wife.
Dear Dr Katoch,
I am writing to you as the chairman of the Board of Governors at NIPER, Mohali. As you are aware, Dr Nilanjan Roy, who has raised concerns about financial dealings at NIPER, was dismissed from the institute recently, by the officiating director.
I know Dr Roy slightly but I do not want to judge the case. I believe that the case should be investigated impartially and thoroughly by an independent committee, and Dr Roy should be kept in his post pending such an investigation. As chairman, I urge you to take immediate steps in this direction, before further damage is caused to NIPER and to Indian science in general.
My reasons for this are the following.
1. As you are aware, NIPER has previously dismissed a scientist, Dr Animesh Roy, who had alleged misconduct on the part of another senior NIPER scientist. Reportedly  an inquiry committee set up by NIPER’s board found, back in 2009, that the allegations made by Dr Roy were true and he had been punished for whistle-blowing. Nevertheless, he was not re-appointed until 2011. This is a black mark against NIPER and should under no circumstance be repeated. Dr Nilanjan Roy should therefore be allowed to continue at NIPER until an inquiry by impartial and eminent scientists, unaffiliated with NIPER, is completed.
2. It is particularly a matter of concern that an officiating director should take such a step against a scientist without holding an impartial enquiry. Media reports suggest that Dr Nilanjan Roy has already appealed to you and, pending your decision, he cannot be dismissed. However, he tells me that he has already been asked to vacate the institute and his residence.
3. It appears that the people who made false charges against Dr Animesh Roy were never punished and continue to have power in NIPER. This is an extremely distressing state of affairs.
I have already made a blog posting on this affair . I very much hope that, if I make a new post on this subject, it will be with some good news.
I am copying Dr Nilanjan Roy and Dr Animesh Roy on this mail.
Looking forward to your urgent reply,
With best regards
(The Institute of Mathematical Sciences, Chennai; opinions above are my own.)
 G S Mudur, The Telegraph, 2009
UPDATE 10/5/2012: Reading the comments, it is fascinating to me how those who know Nilanjan and are defending him are doing so with their real names, while those who are attacking him are hiding behind pseudonyms.