Written by: Techub News Compilation

In the latest episode of YC Root Access, Lumina founder Keshav shared his extraordinary journey from a drop-out teenager in India, a Rubik's Cube world champion, to a Silicon Valley healthcare AI entrepreneur. His company Lumina recently completed a $38 million Series B funding round led by Peak 15, becoming the "AI transformation partner" for large hospital systems in the United States. This conversation not only reveals the rise of a star startup but also showcases how an atypical entrepreneur penetrated the highly barriered core of the healthcare industry through unique thinking and execution.

From Rubik's Cube Champion to Hackathon "Hunter"

Keshav's starting point is starkly different from most Silicon Valley entrepreneurs. In India, he candidly admitted that his "academic performance was not outstanding," and in an environment that judged heroes by academic results, he felt he belonged to "another group." At the age of eleven, he stumbled upon the Rubik's Cube and quickly became addicted. He dedicated seven to eight hours a day to practice, continuing for seven years, even waking up three or four hours early to do so. This experience not only made him break multiple world records and become the captain of the Indian national Rubik's Cube team but also shaped his early worldview.

"The Rubik's Cube community is a very fair arena," Keshav recalled. In that space, age, profession, and academic background did not matter; the only standard was "how fast you can solve the cube." He found he excelled in specific solving methods, and even older PhDs and doctors would come to him for advice. "That was my first experience of a completely different mode of interaction," he said. This recognition based purely on skill, combined with a competitive environment where every step of progress is quantifiable and provides feedback, gave him immense satisfaction and a sense of control.

To gain the opportunity to study in the United States, Keshav planned a bold adventure: he teamed up with several foundations to organize a bike trip from Turkey to China. This experience caught the attention of a foundation in the US, which funded his visit to Silicon Valley for ten days. When Keshav set foot in Palo Alto and wandered around the Stanford campus, he felt "everything in his childhood dream seemed to have come true." At the end of his visit, he made a life-changing decision: not to return.

The question was, how could a 19-year-old with a tourist visa survive in expensive Silicon Valley? His answer was: hackathons. Keshav discovered that during that time, the Bay Area was filled with hackathons hosted by major companies like Twitter and Google, where winners could earn up to ten thousand dollars. He and his friends devised a strategy for "hacker" hackathons: the core insight was that the judges who ultimately decide the winners are often the event organizers themselves.

Their strategy was simple yet effective: during the first two hours of the event, while others were still focused on coding, they brought their preliminary results to the organizers and asked for feedback. Then, based on the feedback, they quickly iterated and presented again two hours later. This cycle could yield up to 16 cycles of feedback within 48 hours. "What we ultimately built was exactly what the hackathon organizers wanted," Keshav explained. This method proved highly successful, and he and his small team won around $40,000 to $45,000 by participating in five or six hackathons, sustaining him through the initial months in the US.

YC Pivots and the Birth of Lumina

Once survival was assured, Keshav turned his attention to the startup incubator Y Combinator (YC). For him, the allure of YC lay in its core principle of "meritocracy"—there was no need for SAT scores or recommendations, which reminded him of the Rubik's Cube community's environment based purely on capability. Their initial startup idea was to automate document generation tools for engineers because "every engineer we spoke to complained about spending 40% of their time writing documentation."

Despite impressing the YC interviewers with Keshav's unique personal experience (Rubik's Cube records, Silk Road bike ride, survival in hackathons) and securing a spot, YC candidly pointed out that their initial idea was not good enough. Three weeks later, after engaging with initial customers, the team realized the same, and thus began a new "maze of ideas" exploration.

Keshav viewed this pivot as a process that could be "systematic." He believed that especially in B2B startups, science outweighs art. They considered two lines of thought: first, was there a mission or story that could keep them passionate in the long term? Second, by conversing with more and more enterprise clients, could they uncover a significant and universal pain point?

At this moment, Keshav experienced a serious family health event, which made him acutely aware of the importance of the healthcare sector. Simultaneously, they discovered a great deal of highly manual operational workflows within large organizations. An interesting association emerged: one of the key methods to increase speed in Rubik's Cube solving is to "reduce steps." Keshav himself is a "low-efficiency" yet fast solver who relies on super speed (rather than optimal methods). Therefore, the question of "how to reduce workflow steps" held natural appeal for him.

Combining these two threads, the embryo of Lumina gradually became clear: to become a "data transformation layer" that converts vast amounts of unstructured data (like faxes) in medical systems into structured data, and on that foundation, build vertical AI agent workflow engines that automate tedious paper processes previously handled by human labor.

Conquering Enterprise Sales: The Power of Story and People

Lumina targets the largest hospital systems in the United States, such as the Cleveland Clinic. Keshav shared a specific case: top medical institutions like the Cleveland Clinic, which handles over 16 million patient visits annually, still primarily receive patient referrals via fax. They have dedicated operational teams that spend all day checking these faxes to discern which are junk, which are thank-you notes, and which require immediate attention for high-risk cancer patients. This process is extremely manual and inefficient.

Lumina's solution is to act as the "frontline inbox agent" for hospitals. All incoming faxes first go through the Lumina system for initial triage. If it's a high-risk patient, it's processed immediately; if it requires care but is not urgent, all information is extracted, matching the correct patient and doctor in the internal electronic health record (EHR), and routed to the right department (Cleveland Clinic has thousands of departments), thus starting the appointment process.

However, how does a young person in their early twenties persuade these century-old, hierarchical healthcare institutions to collaborate? Keshav's core sales philosophy is: you are not selling to the enterprise, but to individuals. You need to find that "champion" within the organization who is willing to say "yes."

Their strategy is to seek out those who are "forward-thinking" and have rapidly advanced in their careers (like executives who reach the C-suite in their thirties). Then, they leverage every possible network (initially investors, later customers and industry advisors) to request introductions or endorsements. "We wrote a script that crawled everyone's LinkedIn contacts and matched them with our target customer profiles," Keshav described their early clumsy yet effective method. Even if the initial contact is not the ultimate decision-maker, as long as they can enter the organization, they have the opportunity to be recommended up the ladder.

Keshav emphasized that beyond product value, personal stories and mission narratives are key to earning early customer trust. "When you tell your personal story, your history, and your company's mission—even if you are far from achieving it—they will resonate with that narrative, believe it, and be willing to bet on you." He would even bring a Rubik's Cube to meet clients, proving his story with action. To meet with them, he would book flights at any time, "we’ve taken an uncountable number of red-eye flights as a team."

In the initial years, Lumina hardly sent any cold emails; all customers were acquired through introductions and networks. "Large institutions won’t pay attention to you unless it’s a trusted person's referral." Keshav believes that enterprise sales is essentially a "deep relationship game," especially when focusing on a specific customer group; the world is much smaller than one might think.

Focusing on Healthcare: From General Platform to Vertical Depth

As the company's revenues reached millions and they had dozens of clients, Keshav and the team faced a new crossroads. The initial Lumina was a more general, horizontal automation platform. However, they realized that to serve larger enterprise clients, they must become an indispensable partner to a specific type of client group without trying to do everything for everyone.

The data provided clear direction: over 80% of existing customers came from the healthcare sector. So, they made their first major decision: All in on healthcare. However, "becoming a universal tool for the healthcare industry" was also a problematic positioning. Large organizations don't have the time to think creatively about how to use your platform; you must clearly articulate "what is possible" and have a deep understanding of their issues, as if you had worked there for 20 years.

Thus, Lumina underwent a second transformation: while maintaining platform scalability, they clarified several key initial use cases and entry points that allowed clients to see value extremely quickly. They started with concrete, painful, and quantifiable pain points like "fax triage" to build trust and then gradually expanded. Keshav summarized, "At every stage of the company, you must reinvent yourself." Because there will always be new startups coming along with the same dream vision you had four or five years ago. You must continuously evolve while scaling your own company to become that "dream vision" maker.

Advice to My 19-Year-Old Self: Your Ambition Can Be 1000 Times Greater

Looking back on the journey from India to Silicon Valley, from a Rubik's Cube boy to a healthcare AI CEO, when asked what advice he would give to his 19-year-old self, Keshav's answer was firm and powerful: "Your drive and ambition could be 100 to 1000 times greater than you think you should have. This has nothing to do with your experiences or background. There are no rules here—of course, integrity is the bottom line— but regarding the problems you can solve, the fields you can touch, and the types of changes you can bring about, I believe there are no real rules."

He believes that in today's era, the arena has never been so fair. If you want to become the next Steve Jobs, Bill Gates, or Elon Musk, that is more likely than you might think. Today, he possesses the same intensity he had at 20, if not stronger, but the mission he pursues spans decades and potentially a lifetime. "If I had been more ambitious back then, perhaps we could have reached where we are now faster." This is Keshav's ultimate insight for all atypical entrepreneurs: dare to dream, and anything is possible.

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