We must build not just brand engines, but experience engines: Ravi Santhanam, HDFC Bank

At the MarTechAI Summit 2025, Ravi Santhanam, Group Head & Chief Marketing Officer, HDFC Bank, delivered an energetic keynote on what it really takes to build “intelligent, always-on brand engines.” Setting the tone early, he reminded marketers that technology alone cannot save poorly defined thinking.

“Human stupidity cannot be overcome by artificial intelligence,” Santhanam said, adding that AI only works when organisations truly understand the consumer, the context and the business problem they’re trying to solve.

Santhanam began by reframing what a “brand engine” means today. It’s no longer about isolated campaigns or one-off messaging, he argued. “Brand safety levels are a collection of associations in the minds of consumers… it’s not about one, two, three campaigns. It is everything, every action, every interaction they have with your brand.” With touchpoints exploding and customer journeys fragmenting, he described the marketer’s new role as a “brand experience custodian.”

Illustrating how drastically expectations have changed, he said consumers now expect hyper-relevant conversations everywhere. “I cannot have the same conversation with someone I’ve never met and someone I’ve known for years. The brand must recognise the relationship,” he emphasised.

Santhanam broke down HDFC Bank’s approach into a simple sequence: define the real problem, build the ‘rails’, and scale experiences. He stressed the importance of starting with business-first clarity. “The first problem is: what can marketing directly contribute to business? The second is: how can the same investment help our people on the ground, our branch managers and relationship teams, have better conversations?”

He showcased examples of personalisation at scale, where the bank combines behavioural data, product needs and past interactions to generate millions of content variations. For instance, using AI-driven offer engines for credit cards or personal loans, HDFC Bank is able to tailor real-time journeys. “Imagine multiplying this across all products—we are talking about 1.35 million pieces of content. Manually, this is impossible,” he said.

A standout illustration was how the bank integrates customer and employee experience using QR-linked journeys. “When a customer scans the QR, we show relevant offers. The same information is shared instantly with the relationship manager so the conversation is holistic.” The next frontier, he said, is making these outputs more human. “Can we make this into English? Can we personalise not just content but conversations? That’s the future we are building toward.”

Santhanam also detailed the foundational work needed before any AI transformation. “If you don’t have the rails, you cannot solve the problem. If you don’t have clean data, build it.” He shared how the bank set an ambitious mission internally: “We said 25% of product sourcing will happen without any human intervention. If 10,000 employees do it today, 300 should be able to do it tomorrow.”

But the transformation, he noted, is as cultural as it is technological. “Create space for experiments. Allow people to fail. Celebrate failures and celebrate success,” he urged. Leadership, he said, must model the behaviour they expect. “Are you practising this in your organisation? If I’m the CEO, do I accept that? I want nothing but the best.”

Closing the session, Santhanam emphasised that AI will only unlock its full power when brands shift from static storytelling to dynamic, intelligent systems. “If we want to really reach the market, we must build not just brand engines, but experience engines,” he said, calling this the future of how marketing will be built and scaled.