A young employee of the social media cell of Uttar Pradesh chief minister Yogi Adityanath has hanged himself after purportedly tagging the BJP politician and a bureaucrat in a suicide note uploaded on Twitter in which he accused two seniors of harassment.

Parth Srivastava, 28, was found hanging from the ceiling fan of his Lucknow home on Wednesday. The members of the chief minister’s social media cell are employees of an outsourced private company. The cell is tasked with publicising the schemes of the state government, keep tabs on the social media activities of Opposition leaders and plan counter-attacks, sources said.

In the purported suicide note, a picture of which Parth had shared with his colleagues and friends on WhatsApp and is claimed to have also uploaded on Twitter, he wrote: “My suicide is actually a murder. Only Shailja is responsible for playing politics and Pushpendra Singh for supporting her.”

Parth’s sister Shalini Srivastava said he had tagged Adityanath and Shishir Singh, the director of the information and publicity department of the government, to the tweet. Shalini alleged that the 4am tweet could no longer be found on Twitter later on Wednesday.

The matter came to light when Parth’s friends began a social media campaign titled “#JusticeforParthSrivastava”.

Shalini, Parth’s elder sister, told reporters on Friday: “He posted the suicide note on Twitter while tagging the chief minister and Shishir Singh at 4am on Wednesday. They could have saved his life had they shown some sensitivity and got in touch with him or asked their subordinates to communicate with him. Instead, I noticed later that his suicide note posted on Twitter had been deleted.”

Parth was found hanging from the ceiling fan around 7.30am by his family.

Shalini said the police had seized Parth’s mobile phone from which he used to operate his Twitter account.

In the two-page hand-written note, widely shared on social media, Parth had purportedly written: “Pushpendra bhaiya didn’t care for anybody other than Shailjaji. Pushpendra bhaiya used to get angry on others over minor issues.”

“…Pushpendra bhaiya used to find weaknesses in others,” the note added.

“Shailjaji retains her job only by doing sycophancy. She used to highlight my minor mistakes in front of others to prove that I was worthless. Congratulations, Shailjaji,” the note said, signing off with “your worthless employee, Parth Srivastava”.

The police said they had not found the hard copy of the hand-written note that was being circulated on social media.

Ajay Prakash Tripathi, the inspector of the Indira Nagar area where Parth lived, said on Friday: “Ravindranath, the father of the deceased, has informed the police about the incident and submitted a complaint. The police are conducting a probe before action is initiated.”

The Telegraph tried to contact Singh, the director of the information and publicity department, but his cellphone was switched off.

A source in the department said: “An internal investigation is being conducted because Parth was among those who closely coordinates with the chief minister’s office and the information department.”

An employee of the social media cell said on the condition of anonymity: “Shishir Singh chairs meetings of the cell twice a day. He tells us to focus mostly on the work done by Adityanath.”