The forum demanded that the AIIMS admin spell out clearly the basis on which Dr Gupta was made head of the Forensic department.
As per the petition, there was an inordinate delay in the investigation.
More than one annual confidential report termed him “not worth retaining”.
“How do they know there is no pressure on me?” said Dr Sharma in response to the allegations leveled at him.
In his letter sent to new Health Minister and AIIMS president Dr Harsh Vardhan also, Gupta mentioned the two cases.
AIIMS officials said there was no evidence that any pressure from outside was put on Gupta to alter the autopsy report.
Sunanda Pushkar was found dead on Jan 17, 2014 under mysterious circumstances in the Hotel Leela Palace.
Tharoor asserted that he had been demanding thorough, rapid and transparent investigation into the case.
Health Minister has sought a detailed report on specific allegations concerning Sunanda Pushkar’s death.
The police can file an FIR in this case if it finds any foul play but until then the inquiry will go on under section 174 CrPC.
“The CFSL report has not been able to give much headway into the probe,” said a senior police official.
Tharoor said he was fully cooperating with the police investigation ‘even though there is no case against me personally.’
This is the first tweet of Tharoor in the last month since 52-year-old Sunanda Puskar was found dead.
A regular visitor to the Khan residence, Sunanda is said to have been close to every member of the family.
The autopsy report had mentioned more than a dozen injury marks on Sunanda’s body.