Produced by PEOC Sindh in partnership with UNICEF and GPEI, this document presents four tailored Social and Behaviour Change (SBC) strategies for Karachi's most challenging population segments, developed in response to gaps identified through recent campaign monitoring. Rather than a one-size-fits-all approach, each strategy is designed around the distinct social dynamics, trust barriers, and access constraints of a specific group.

The four strategies are:

Pashtun communities — moves from transactional campaign outreach to sustained, culturally grounded trust-building through hyper-local influencer renewal, male engagement in mosques and workplaces, women-centered outreach via madrassah networks, and activation of Alimas and adolescent girls as credible voices. Grounded in the "Pashtun Trust Engagement Cycle."

Posh/high-income communities — replaces house-to-house mobilizers with status-aligned channels: private pediatricians, school notifications, WhatsApp groups, and concierge-style vaccination booths inside gated communities. Mobilizers are rebranded as "Health Ambassadors" to match community expectations.

Guest and mobile populations — shifts to a dynamic, community-linked model using local gatekeepers (landlords, caretakers, transport workers) to identify and register transient families, with flexible timing, language-appropriate mobilizers, and a "guest child" tick-box in NA line-lists to close documentation gaps.

Hidden children and grey-house detection — builds a community intelligence and social-listening network to proactively surface households where children may be hidden, falsely finger-marked, or undisclosed. Uses women-led listening circles, COMNet informants, and sensitive validation visits — framed around dignity and trust, not surveillance.

The document closes with simplified SBC indicators for each strategy to track progress.

Best used for: urban polio SBC design, hard-to-reach population strategies, community trust-building approaches, and context-specific mobilization models for Karachi/Pakistan.