No compulsion of saying Om during Yoga Day: Ayush Minister

New Delhi, Jun 15: Two officials working with the Indian High Commission in Islamabad have reportedly gone missing, sources said.

The two officials are untraceable for the last few hours.

Recently news agency reported on how Pakistan 's spy agency ISI has been tailing and harassing Indian officials and also increased their presence at the residence of Acting High Commissioner Gaurav Ahluwalia.

This incident came in the backdrop when two Pakistani officials were caught red-handed and sent back trying to collect classified information and spying in Delhi.

South block is watching the developments closely, the Indian mission has also launched a complaint with local authorities and taken up the matter Pakistan Foreign Ministry.

This incident can cause a further dip in the already tense India-Pakistan relations.

Earlier in the month, India deported two Pakistani officials for espionage activities in India.

Kolkata, Jan 28: West Bengal chief minister Mamata Banerjee Tuesday said she is ready for talks with Prime Minister Narendra Modi on the issue of Citizenship Amendment Act but the Centre has to first withdraw the contentious law.

Banerjee said protesting against the decisions of the centre doesn't make opposition parties anti-national and iterated that she will not implement CAA, NRC or NPR in the state.

"It is good that the prime minister is ready for talks but the Citizenship Amendment Act (CAA) must be revoked first. They (Centre) did not call an all-party meeting before taking a decision on Kashmir and CAA.

"We are ready for talks but first withdraw this Citizenship Amendment Act," Banerjee, a staunch critic of the BJP, said addressing a protest programme against CAA through paintings.

The West Bengal assembly had on Monday passed a resolution against the CAA to become the fourth state after Kerala, Punjab and Rajasthan, to do so. The state assembly had on September 6, 2019, passed a resolution against the NRC.

Washington, Apr 23: Air pollution over northern India has plummeted to a 20-year-low for this time of the year, according to satellite data published by US space agency National Aeronautics and Space Administration (NASA).
The US space agency's satellite sensors observed aerosol levels at a 20-year low post the countrywide lockdown, implemented to slow the spread of the novel coronavirus.

"We knew we would see changes in atmospheric composition in many places during the lockdown," said Pawan Gupta, a Universities Space Research Association (USRA) scientist at NASA''s Marshall Space Flight Center. "But I have never seen aerosol values so low in the Indo-Gangetic Plain at this time of year," added Mr Gupta.

Acting Assistant Secretary of State for South and Central Asia Alice G Wells tweeted, "These images from NASA were taken each spring starting in 2016 and show a 20-year low in airborne particle levels over India. When India and the world are ready to work and travel again, let's not forget that collaborative action can result in cleaner air."

The data published with maps show aerosol optical depth (AOD) in 2020 compared to the average for 2016-2019. Aerosol optical depth is a measure of how light is absorbed or reflected by airborne particles as it travels through the atmosphere.

If aerosols are concentrated near the surface, an optical depth of 1 or above indicates very hazy conditions. An optical depth, or thickness, of less than 0.1 over the entire atmospheric vertical column is considered "clean." The data were retrieved by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite.

In the first few days of the lockdown, it was difficult to observe a change in the pollution signature. "We saw an aerosol decrease in the first week of the shutdown, but that was due to a combination of rain and the lockdown," said Mr Gupta.

Around March 27, heavy rain poured over vast areas of northern India and helped clear the air of aerosols. Aerosol concentrations usually increase again after such heavy precipitation.

"After the rainfall, I was really impressed that aerosol levels did not go up and return to normal. We saw a gradual decrease and things have been staying at the level we might expect without anthropogenic emissions," Mr Gupta said.

On March 25, the Indian government placed its 1.3 billion citizens under a strict lockdown to reduce the spread of COVID-19. The countrywide mandate decreased activity at factories and severely reduced car, bus, truck and airplane traffic. Every year, aerosols from anthropogenic (human-made) sources contribute to unhealthy levels of air pollution in many Indian cities.

Aerosols are tiny solid and liquid particles suspended in the air that reduce visibility and can damage the human lungs and heart.

In southern India though, the story is a little hazier. Satellite data show aerosol levels have not yet decreased to the same extent. In fact, levels seem to be slightly higher than in the past four years. The reasons are unclear but could be related to recent weather patterns, agricultural fires, winds or other factors.

"This a model scientific experiment," Robert Levy, program leader for NASA's MODIS aerosol products, said about the lockdown and its effects on pollution.

"We have a unique opportunity to learn how the atmosphere reacts to sharp and sudden reductions in emissions from certain sectors. This can help us separate how natural and human sources of aerosols affect the atmosphere," Mr Levy added.