Another diplomat is said to have had his auto tailed while on his way home Thursday evening.
Earlier, a senior Pakistani officer was harassed when his vehicle was stopped in Chanakyapuri neighbourhood of the Indian capital and was left with no other option but to return to the high commission. In a note verbale, Pakistan high commission alleged that the auto of one of the senior diplomats with his children on board was blocked on road.
He was summoned by Director General (South Asia & SAARC) Mohammad Faisal and a strong protest was lodged at the "maltreatment being meted out to the officials and families of the Pakistan High Commission in New Delhi", according to a statement by the Office of Spokesperson of Pakistan Foreign Affairs Ministry here.
He demanded that the Indian government take concrete steps to ensure safety and security of Pakistani officials and their families.
This has come days after several complaints of harassment of Indian diplomats in Islamabad. One official was quoted as saying, "Aggressive surveillance, violation of physical space and tailing of [Indian] officers in close and unsafe proximity is a perennial issue" inside Pakistan. "[Intelligence agency] personnel keep shooting videos of the officers, thrusting phones on their faces".
This comment came, even as it came to light that tension has been brewing between the two sides for a couple of months - one of the incidents involved the doorbell of the Indian deputy High Commissioner J P Singh being rung at 3 am.
In October 2016, Pakistan expelled Indian diplomat Surjeet Singh, saying he had violated the Vienna Convention and "established diplomatic norms".
In yet another incident, the vehicles of diplomats' families were stopped at a road in a similar fashion and harassed.
Pakistan has officially conveyed their reservations on the matter to the Indian authorities, saying that performing their duties in New Delhi will become very hard under the current circumstances.
The two countries regularly exchange fire across the de facto border in the disputed northern region of Kashmir, which both claim in full but administer separate portions of.
Asad Hashim is Al Jazeera's Web Correspondent in Pakistan.