India's trade moves through seaports such as Nhava Sheva, Mundra, Chennai, Visakhapatnam and Kolkata, inland container depots such as Tughlakabad and Whitefield, and air cargo terminals in every metro. Many CHA offices sit near their city's Custom House. Each staffed office should have its own listing and a page that says which ICDs and ports it serves.
Your clients cluster in industrial belts: chemicals and dyes in western India, engineering around Pune and Coimbatore, auto parts near Chennai, pharma inputs in Hyderabad. We write pages for the cargo those belts ship, so a dye maker finds a broker who knows hazardous chemical imports.
Searches are often in English mixed with Hindi or a regional language: "custom clearance wala agent", "cha ka office custom house ke paas". We use these terms where natural.