BillBook — Sri Lanka launch ad

Original voice. “Sinhala” → SIN-ha-laSri Lanka only

16:9 — feed / YouTube / landing

↓ download 16:9

4:5 — feed (mobile)

↓ download 4:5

1:1 — square

↓ download 1:1

Back to the original voice — only the word “Sinhala” changed to SIN-ha-la (your Option 3). Everything else is exactly as before. Sri Lanka video only; India untouched.