Infectious Advertising promotes Siddhartha Singh to CEO and managing partner

MUMBAI: Infectious Advertising has elevated Siddhartha Singh to chief executive officer and managing partner, marking a key leadership transition at the independent agency.

Singh, who previously served as chief operating officer, has been credited with strengthening the agency’s operational framework and deepening client relationships during a phase of sustained growth. His elevation signals a continued push towards integrating strategy and creativity while scaling the business.

As part of the reshuffle, Nisha Singhania, co-founder and managing partner, will step away from day-to-day executive responsibilities to focus on strategic initiatives and the agency’s next growth phase.

Infectious Advertising co-founders and managing partners Nisha Singhania and Ramanuj Shastry said, “Siddhartha understands both the ambition and the soul of this agency. This elevation reflects the trust he has earned over the years.”

Infectious Advertising chief executive officer Siddhartha Singh said, “Infectious has always been about creating work that people care about. I’m humbled by the trust and excited to lead the agency at a time when there is a significant opportunity to create real impact.”

In his new role, Singh will work closely with the founders to steer the agency’s next phase, with a focus on deeper strategic integration, long-term client partnerships, and continued investment in talent and culture.

The transition underscores the agency’s emphasis on internal leadership development as it looks to build a future-ready organisation anchored in its core values.