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The US Department of Homeland Security (DHS) has confirmed that Ranjani Srinivasan, an Indian doctoral student at Columbia University, has voluntarily left the United States after her visa was revoked over alleged support for Hamas, the democratically elected party in Gaza.

Srinivasan, a PhD student in Urban Planning, was in the US on an F-1 student visa. The US Department of State revoked her visa on March 5, 2025, citing security concerns related to her alleged involvement in activities supporting Hamas. On March 11, 2025, she self-deported using the CBP Home App, with officials confirming video footage of her departure.

US Homeland Security's Response

Secretary of Homeland Security Kristi Noem emphasized that studying in the US on a visa is a privilege, which can be revoked if an individual is found to support violence and terrorism. She stated that such individuals should not be permitted to stay in the country.

Srinivasan’s Academic Background

Srinivasan’s academic credentials include:

• M.Phil in Urban Planning – Columbia University (GSAPP)
• Master’s in Design – Harvard University (Graduate School of Design)
• Bachelor of Design (B.Des.) – CEPT University, India
• Her research focuses on land-labor relations in India’s peri-urban areas, with academic interests in political economy, land politics, and labor sociology.

'Security Concerns'

Her case has gained attention amid increased US government scrutiny of individuals and organizations allegedly supporting Hamas. Visa revocations for security reasons have become more frequent, reflecting the government's strict stance on national security and immigration policies.

Srinivasan’s self-deportation highlights the US government’s ongoing efforts to enforce visa regulations and prevent individuals it considers a security threat from remaining in the country.

New Delhi: Prime Minister Narendra Modi has written a letter to Indian-origin NASA astronaut Sunita Williams, who today began her return journey to Earth from the International Space Station (ISS) after being stranded there for more than nine months.

In a letter dated March 1, which was shared by Union Minister Jitendra Singh on X today, the Prime Minister said he had inquired about the well-being of Ms Williams - who flew to the orbital lab on June 5 last year - when he met President Donald Trump and his predecessor, Joe Biden, during his visits to the United States.

The letter was made public hours after Ms Williams and her colleague, Butch Wilmore, undocked from the ISS for a 17-hour trip back home.

PM Modi recalled that at a meeting with former NASA astronaut Mike Massimino in Delhi this month, her name had come up in their conversation.

"We discussed how proud we are of you and your work. Following this interaction, I could not stop myself from writing to you," PM Modi said.

"1.4 billion Indians have always taken great pride in your achievements. Recent developments have yet again showcased your inspirational fortitude and perseverance," he wrote.

He said her mother, Bonnie Pandya, must be "keenly" awaiting her return.

"I am sure that Late Deepakbhai's blessings are with you as well," the Prime Minister said, referring to her father, Deepak Pandya, who was a resident of his home state, Gujarat, and died in 2020.

PM Modi also said he "fondly" remembers meeting him and her during his visit to the US in 2016.

"Even though you are thousands of miles away, you continue to remain close to our hearts. The people of India are praying for your good health and success in your mission," PM Modi told the 59-year-old astronaut.

"After your return, we are looking forward to seeing you in India. It will be a pleasure for India to host one of its most illustrious daughters," he added.

He also sent his "warm regards" to her husband, Michael Williams.

Sunita Williams and her colleague, Butch Wilmore, flew to the orbital lab on June 5 last year, on what was supposed to be a days-long roundtrip to test out Boeing's Starliner on its first crewed flight.

The spaceship, however, developed propulsion problems and was deemed unfit to fly them back. It instead returned uncrewed.

The two astronauts were then reassigned to the NASA-SpaceX Crew-9 mission, which saw a Dragon spacecraft fly to the ISS in September last year with a team of two -- American astronaut Nick Hague and Roscosmos cosmonaut Aleksandr Gorbunov -- rather than the usual four, to make room for the stranded astronauts.

On Sunday, a relief team -- Crew-10 -- docked with the space station to make the way for Ms Williams and Mr Wilmore's much-awaited homecoming, along with Mr Hague and Mr Gorbunov.

Mangaluru International Airport (MIA), Karnataka’s second busiest airport, has seen 148.5kg of gold smuggled between 2019 and December 2024, with 90% arriving from the UAE. Customs officials recorded 346 cases, averaging 30kg of gold seized per year (2.5kg per month). Most smugglers are from Kerala and Bhatkal.

A senior customs officer revealed that MIA sees at least five gold smuggling cases per month. Numbers dropped during the pandemic but surged after flights resumed. Many offenders are first-time carriers, while some are habitual smugglers. With fewer flights, customs thoroughly checks passengers, making smuggling harder.

Smugglers constantly innovate concealment methods. Hiding gold in the rectum remains common, but gold is also found in trolley bags, mobile covers, chocolate boxes, milk powder, biscuit packets, and clothing layers. Electronic devices like car speaker magnets, LED bulbs, AirPods, wristwatches, and ballpoint pens have been used.

Unusual tactics include hiding gold in a woman’s hairband, a baby’s diaper, and even a kheer mix packet (347g). In one case, a passenger attempted to smuggle 100g in his mouth under a mask but was caught.

Officials note that while the UAE remains a key source, smugglers now bring gold from other Gulf countries, continuously adapting to evade detection.