Coverage has expanded to include many things

The new policies pay for a lot more than before: think pre- and post-hospitalization bills, coverage for day-care procedures (the exact list/number varies by policy), AYUSH treatments (like Ayurveda), pain management, and even second medical opinions (coverage and any monetary limits vary by policy).
Follow-up consultations may be covered (limits vary by policy), plus many plans use stage-based payouts, and the percentage paid at advanced stages varies by insurer and product (payout amounts differ by policy).

Leading options and their waiting periods

Some leading options: Star Health's Cancer Care Platinum covers both cancer and non-cancer expenses; New India Assurance's Cancer Guard offers ₹500,000-₹5,000,000 coverage; Aditya Birla's Activ Secure goes up to ₹10,000,000; HDFC ERGO iCan offers up to ₹5,000,000; Care Cancer Mediclaim offers up to ₹20,000,000.
Waiting periods vary widely by plan — examples range from about 30 days up to 30 months; common periods include 30, 60, 90, 120 and 180 days.

Why this matters so much now

With one in nine Indians at risk of developing cancer and non-communicable diseases causing most deaths here, having solid insurance is more important than ever.
Even government schemes like Ayushman Bharat PMJAY only cover so much, so these updated plans could really make a difference when it counts.