Pre-book with a gift card of Rs. 1000 or more and get additional Rs. 1000 back as Amazon Pay Balance.
Buy:
• OnePlus 8 Series Pre-book
• OnePlus 8 128GB Rs. 39999 (SBI Credit Cards) or Rs. 41999
• OnePlus 8 Pro 128GB Rs. 51999 (SBI Credit Cards) or Rs. 54999