Swamy's charges against Chidambaram baseless, says government

Guwahati, Jan 26: Four powerful grenade explosions--three in Dibrugarh and one in Charaideo districts--rocked Assam Sunday morning as the country celebrated Republic Day, police said.

In Dibrugarh district, an explosion took place at Graham Bazar and another beside a gurudwara on A T Road, both under Dibrugarh police station.

Another explosion rocked the oil town of Duliajan whose details are still awaited, police said.

Another explosion rocked Teok Ghat under Sonari police station of Charaideo district, they said.

Senior officials have rushed to the explosion sites and details of casualty are awaited, police added.

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.

Jaipur, Jul 23: Four days after the Special Operation Group (SOG) sent a notice to Union minister Gajendra Singh Shekhawat in connection with the purported audio clips indicating his alleged involvement in horse trading of MLAs in Rajasthan, a city court has directed the Rajasthan police to probe a complaint alleging Shekhawat's role in a credit society scam worth Rs 840 crore.

The additional district judge Pawan Kumar, on Tuesday, directed the additional chief judicial magistrate's court to send the complaint against Shekhawat to the SOG.

Shekhawat, his wife and other partners have been named in the complaint in the Sanjivani Credit Cooperative Society scam in which around 50,000 investors allegedly lost about Rs 840 crore.

The Jaipur unit of the SOG has been probing the scam since last year after an FIR was registered on August 23, 2019.

Now, Jaipur ADJ Court-8 ordered a fresh inquiry in the case against Gajendra Singh accepting the revised application filed by Lagu Singh and Guman Singh and said that "this is a serious matter and hence SOG should investigate this".

Both the applicants had invested a huge amount in Sanjivani credit cooperative society.

It is alleged in the complaint that a multi-storey building has been built with the money instead of a theatre which was proposed earlier and many properties were also bought in Ethiopia with the money.

An SOG investigation also reveals that a large amount of money has been deposited into accounts of Shekhawat and his wife at different time spans, said sources.

Earlier, Shekhawat was not mentioned in the chargesheet filed by the SOG in connection with the case. Later, a magistrate's court also rejected the application to include him in the chargesheet. The applicants then approached the additional district judge's court with a revised application.