MUMBAI — On a humid afternoon in India’s financial capital, a billboard near Marine Drive flickers to life—powered entirely by solar panels. Nearby, another hoarding uses vinyl that absorbs carbon dioxide. These are not just advertising experiments; they are part of a quiet shift reshaping the out-of-home (OOH) advertising industry.
As global brands demand eco-friendly campaigns and governments tighten regulations, OOH companies are racing to adopt sustainable practices—or risk becoming obsolete.
Dipankar Sanyal, CEO of Platinum Media, has a stark warning for his peers: adapt now or pay later. “If we wait for regulations, compliance will become a costly scramble,” he said. “Brands like IKEA and Coca-Cola already refuse to work with partners who are not sustainable. This is not idealism—it is business.”
His concerns are echoed across the industry. A recent study by Harvard Business Review found that companies lagging on sustainability face shrinking client rosters and investor skepticism.
For years, sustainability in OOH was narrowly defined—recycled vinyl, energy-efficient LEDs. But Rajat Sikder, director of Walk The Talk, argues the industry’s responsibility runs deeper.
“An ad hoarding is not just a marketing tool; it is part of a city’s identity,” he said. After devastating floods last October disrupted Mumbai’s infrastructure, Sikder’s team repurposed damaged billboards into temporary shelters. “If we occupy public space, we owe the public more than just ads.”
Technological innovation is also critical. Pratik Lalani, co-founder, Craywingz described campaigns where servo motors adjust signage to reduce waste and augmented reality replaces physical materials. “Clients balk at upfront costs, but long-term savings—and goodwill—are undeniable,” he said.
Some solutions are already here. Shahid Hakim’s firm, WALLOP Advertising, holds patents for solar-powered billboards that generate water from atmospheric humidity and support vertical gardens. “One installation saves energy equal to 150 trees,” he said.
Yet adoption remains slow. Mangesh Shinde, co-founder of Osmo Advertising cites inconsistent policies. “Flex banners are banned in some cities, but without recycling systems, they end up in landfills anyway,” he said. “We need standards, not just rules.”
The industry’s turning point may come from an unlikely source: creativity. Lalani’s team recently designed a campaign where a single digital display adapted to three different festivals, slashing material use. “Sustainability shouldn’t limit creativity—it should fuel it,” he said.
For Sikder, the ultimate test is authenticity. “Greenwashing won’t cut it. Either we commit to sustainability as a core value, or we become relics.”
As Mumbai’s skyline glows with solar-lit billboards, one message is clear: in OOH advertising, the future is not just visible—it is sustainable.

