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How a broom maker helped trio from IIT-D make drones to light up Rajpath

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How a broom maker helped trio from IIT-D make drones to light up Rajpath

The sky over Rajpath lit up in a kaleidoscope of colors on Saturday, as 1,000 drones created a 3D image of Bapu with his walking stick, tricolor flag and a map of India. The brains behind the event are two IIT-Delhi alumni and their professors, who spent six months designing and building the drones and preparing different animations to recreate in the sky.

Tanmay Bunkar and Anuj Kumar Barnwal, physics graduates from IIT Delhi, co-founded their startup Botlab Dynamics with Dr Sarita Ahlawat in 2016. Their goal is to replace large, expensive drones with simpler, cheaper drones that can perform the same tasks and carry the same payloads by forming a network or collaborative aviation system. Over time, they received grants from IIT-Delhi’s Department of Science and Technology and the I-Hub Robotics Foundation (IHFC).

On Saturday, Rajpath’s sky was their canvas, drones and their brushes, with different patterns to mark the 75th anniversary of independence. These include a giant 3D globe, a rising tricolor, a map of India, and an Ashok chakra in the center. It was an elaborate process that took months to conceive and design.

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“We came up with a concept where we would show six or seven patterns. Then it had to be turned into an animation on the computer. It was a very time-consuming exercise, each animation could take up to two weeks. Then We run this animation through a simulation to make sure the drones don’t collide with each other, taking into account factors like air speed. After this, we input the program into each drone, then bring them to the ground and do a test flight,” explains Dr. Say. Ahawat.

Last July, the Defense Department told Botlab Dynamics that they would be taking part in Republic Day celebrations and that they had to target 1,000 drones. Before that, Tanmay and his colleagues had never handled more than 80 drones at the same time.

“The reliability of these drones is key to making sure the show runs smoothly. We have 1,000 drones to complete a show, but we don’t have 1,000 people to maintain each drone, do pre-flight inspections, etc. That is This is a luxury that we don’t have. So we decided to build the drone ourselves so that we can understand the causes of different errors and malfunctions,” said Tanmay Bunkar.

Soon, they started ordering parts and assembling the hardware. But at this time, the global supply chain is snapped up, and the shortage of different components such as semiconductor chips starts to impact different industries. This forced the team to look for alternatives at home. That’s when they found a guy in Manesar who made motherboards for phones and asked him to make printed circuit boards.

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Tanmay said the drone’s casing was made by Seelampur, a manufacturer of fruit baskets and broom handles.

Complete News Source : The Hindu

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KKR issue clarification on viral Kuldeep Yadav slapping Rinku Singh moment with fresh video

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KKR issue clarification on viral Kuldeep Yadav slapping Rinku Singh moment with fresh video

A shocking clip went viral on social media after Delhi Capitals lost their second consecutive game at home against Kolkata Knight Riders. DC spinner Kuldeep Yadav was caught on live TV slapping KKR batter Rinku Singh twice after the game. The clip shows Kuldeep, Rinku, and a few other players sharing a laugh after the game. Kuldeep then slapped Rinku, likely playful.

Manner, but it did not sit well with the latter. Rinku was left embarrassed and shocked at the sight. Kuldeep then slapped him again, this time, leaving him enraged as he had a word with his India teammate. The context behind Kuldeep’s act remains unknown, and fans on social media have called it his “worst behavior” and called for BCCI to “ban” him. The incident.

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Sparked controversy and speculation on social media Kolkata, April 30, 2025 — Following a day of intense backlash and speculation surrounding a viral video where Kuldeep Yadav appeared to slap Rinku Singh twice during a live broadcast, Kolkata Knight Riders (KKR) issued an influence millions,” said cricket commentator Harsha Bhogle. “There’s a thin line between. official clarification late Tuesday evening, releasing a new behind-the-scenes video to address.

The incident, which took place during a post-match interview after the IPL 2025 game between Delhi Capitals and KKR, sparked social media fury, with many fans demanding disciplinary action against Kuldeep. The visuals showed the left-arm spinner walking up to Rinku Singh and slapping him twice in quick succession the second slap drawing a visibly.

The controversy and calm public outrage.stunned and displeased reaction from the KKR star. The clip went viral, drawing criticism and questions about player conduct on national This may have been a joke, but there needs to be an understanding of optics. Live sports television However, in their official statement, KKR clarified that the moment was taken “out of context” and that both players are long-time friends engaging in “harmless banter.”

KKR’s Statement and Video Release

In a post shared on social media platforms, KKR wrote There’s more to the story than meets the eye. Friends on and off the field — Kuldeep and Rinku share a close bond, and what appeared to be aggressive was nothing more than playful teasing. Here’s the full clip for context The franchise attached a longer, unedited video showing the two players laughing.

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The video appears to support KKR’s claim that the incident was light-hearted and not malicious, although some fans continue to debate whether the act was appropriate for a live telecast and joking both before and after the slapping moment. In the extended footage, Rinku is seen smiling and lightly pushing Kuldeep back after the second slap, with both players sharing a brief hug and continuing their chat casually with the media team.

Rinku and Kuldeep Speak Out

Adding to the clarification, Rinku Singh posted on Instagram banter and discomfort Former cricketer Aakash Chopra echoed a similar the takeaway should be more about self-awareness on public platforms Bhai hai mera, sab mazaak tha doston! Don’t believe everything you see in a 5-second clip. Chill karo Kuldeep is like a brother, it was all a joke, friends! Don’t believe.

Mixed Reactions from Fans and Experts

While many fans expressed relief at the clarification, others continued to stress the also responded via X (formerly Twitter) everything you see in a short clip “When your brother plays for the other team, you tease him a little! Love you, Rinku! Good game, bro to
importance of maintaining professionalism on live broadcasts, even among close friend.

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