IANS/New Delhi

Congress MP Shashi Tharoor has so not yet been asked to join the investigation into the murder of his wife Sunanda Pushkar, Delhi Police Commissioner B S Bassi said yesterday.
“We have not served any formal legal notice to anyone. The investigation officer is yet to attain more information and, only after that, he will decide which person is to be examined,” Bassi told reporters.
“As of now, according to me, though there was speculation, no notice has been given yet because there are many facets to investigate,” he said.
The police chief said talking to people was a part of the probe.
“Talking to people is one part, then talking to experts, gathering physical evidence, reviewing the evidence which has already been gathered...,” he said.
However, the policed yesterday questioned Tharoor’s domestic help Narayan Singh.
Singh had been interrogated twice earlier.
The special team investigating Pushkar’s murder took Singh to an undisclosed location in south Delhi, an official said.
Tharoor’s staff on Wednesday night received a call from police asking Singh to join the probe.
“Narayan was in Himachal Pradesh. He came here today morning and left for the police station,” a staff member at Tharoor’s residence said.
Pushkar was found dead in her south Delhi hotel room on January 17, 2014 in mysterious circumstances. Police registered a murder case earlier this month based on a final medical report by the All India Institute of Medical Sciences which said she died due to poisoning.
Singh was present at the hotel when Pushkar died.
Police officials said that they are likely to call other members of Tharoor’s staff and also the hotel staff for questioning in the next few days.
Tharoor, in a letter to Bassi dated November 13 that became public knowledge on Wednesday, said a Delhi police officer attempted to implicate him and Singh in the murder of his wife. However, Bassi denied the allegation.
Tharoor is undergoing ayurvedic rejuvenation treatment at a centre at Thrissur in Kerala.
Sajeev Kurup, the owner of Perumbayil Ayurveda Mana (ayurveda centre), said yesterday that Tharoor was busy finishing his book and he was undergoing a 14-day general wellness programme for ailments like frozen shoulder and stiffness.
“He was here for a week in September and then he was told to undergo a 14-day in-house therapy. His present 14-day therapy started on December 26,” Kurup said.
He said the treatment of the Lok Sabha member from Thiruvananthapuram will be over by today and he should be out of the centre in the evening.
A day before her death, Pushkar and Tharoor issued a joint statement denying reports that they had a row over his alleged affair with a Pakistani journalist.
Tharoor was then a minister in the government of then prime minister Manmohan Singh. He was re-elected to the Lok Sabha in May last year.