Skip ₹2000+ daily roaming fees. Airtel and Jio run official counters in Terminal 3 arrivals hall immediately after customs clearance.

Required docs: passport photos (bring 2), photocopied passport bio page, photocopied visa page. Tourist plans start ₹299 for 2GB daily data, unlimited calls. Processing takes 5 minutes max with proper paperwork.

Airtel coverage superior in Delhi Metro tunnels and NCR region. Jio slightly cheaper but weaker underground signals. Both work seamlessly with Ola, Uber, Zomato, Paytm — Essential apps you'll use constantly.

Counter locations: Level 0 arrivals, between exits 5-6. Open 24/7 but avoid 3-6am shift changes when service slows. Cash or international cards accepted.