How do Pakistanis know that he was innocent? Consular staff routinely engages in espionage and when caught that person is declared persona non grata and ejected from the host nation.
Given the timing i believe there is political motive.
People like these are very valuable from a counter-intelligence point of view.
If he was spying, he would not have diplomatic immunity.
He would, unless that person himself decided to drop his diplomatic immunity, like in the case of Italian diplomat.
In the past there has been a case of Pakistan diplomat despite possessing explosives merely being expelled.
http://news.bbc.co.uk/2/hi/south_asia/1275409.stm
Nepal expels Pakistan diplomat
First Secretary Chima (right) was arrested on Thursday
Nepal has expelled a senior Pakistani diplomat in connection with the seizure of a large amount of explosives in the capital, Kathmandu.
First Secretary Mohammad Arshad Chima and his wife had been detained on Thursday following a police raid on a private house, in which 16kg of explosives were recovered.
The Pakistani embassy in Kathmandu protested at the detention, saying Mr Chima and his wife were being framed.
Mr Chima is the second Pakistani diplomat to be expelled from Nepal in a year.
Explosives found
He and his wife were arrested when police raided the house where the explosives were found.
It is evident that elements hostile to Pakistan-Nepal friendship are responsible for this unfortunate episode
Pakistan embassy
The Pakistani diplomat was on the premises at the time.
A spokesman for the Nepalese Foreign Ministry, Gyan Chandra Acharya, said Mr Chima's presence in the house was "incompatible with his diplomatic duties and inconsistent with international conventions".
Mr Acharya told the BBC that the Pakistani Government had assured Nepal that action would be taken against Mr Chima if investigations found him guilty.
Earlier, the Pakistani embassy protested at Mr Chima's detention and said the move violated international conventions.
"It is evident that elements hostile to Pakistan-Nepal friendship are responsible for this unfortunate episode," an official statement said, in what was seen as a veiled reference to India.
The embassy complained that it had been denied access to the couple, in violation of international diplomatic norms.
'Hostile' actions
Last year, Nepal expelled a Pakistani diplomat alleged to have been involved in dealing in counterfeit Indian currency.
In the past, Nepal has also arrested suspected Kashmiri militants in possession of explosives.
India alleges that Pakistani intelligence uses Nepal as a base to back Kashmiri militants and carry out subversive activities inside India.
Pakistan has denied the allegation.
The Nepalese authorities say they are determined to stop activities on their soil directed against any of the country's neighbours.
Not the first time a South Asian country has expelled a Pakistani diplomat for Espionage or terrorism related charges, won't be the last time either.
Nepal - 2001
Arshad Cheema expelled as he had helped IC -814 hijackers. Was caught with RDX in his basement.
Bangladesh - 2015
Pakistani diplomat running fake Indian currency racket, was involved with banned terrorist organisations.
India - 2016
Involved in espionage.
Something rotten has gotten into Pakistani diplomat corp , that they keep getting involved with terrorist or in espionage related activities against their host countries, I suspect it is the ISI.
Pakistan is expected to expel an Indian diplomat in tit for tat move, but that move has no actual significance.
As who ever Pakistan expels , and for what ever trumped up charges, is not the real reason Indian diplomat is being expelled for.
Just to add, there was second time a Pakistani diplomat was expelled from Nepal, exactly one year prior to 2001 expulsion.
http://news.bbc.co.uk/2/hi/south_asia/591704.stm
Nepal expels Pakistani diplomat
The allegations involved Indian currency deals
Nepal has ordered the expulsion of a Pakistani diplomat allegedly involved in counterfeit currency dealings.
The Nepalese Foreign Ministry said Asim Saboor, the assistant secretary at the Pakistani mission in Kathmandu, had been ordered to leave within 72 hours.
A statement said: "Asim Saboor was involved in acts incompatible with his status. He was therefore was ordered to leave Kathmandu."
Nepalese police took Mr Saboor into custody on Monday following a raid on his residence.
They say they are questioning him about his possible involvement in a counterfeit Indian currency deal.
Police sources claim they have caught Mr Saboor in the act of conducting a transaction with the fake money.
He is alleged to have been in possession of counterfeit Indian banknotes worth about $1,150.
The Pakistani embassy refused to agree to a Nepalese request to waive Mr Saboor's diplomatic immunity.
The embassy says the police raid was carried out without a proper search warrant and that no evidence against Mr Saboor was found.
According to the BBC's Sushil Sharma in Kathmandu, local analysts say the expulsion coincides with Indian allegations that Pakistani intelligence services are using Nepal as a base against India.
India stepped up the allegations following the last month's hijacking of an Indian Airlines plane which took off from Kathmandu.