33,000 Standard one-way — the best ₹-per-mile flat bed of the three India–HKG corridors, because the band edge holds at 2,750 miles. SBI feeds Asia Miles 1:1 (₹33,000-equivalent); HDFC and Amex haircut to 2:1. Book the moment Standard space opens.
Feed it: 66,000 Amex Membership Rewards (2:1) · 33,000 SBI Travel Credits (1:1) · 1,58,400 RBL Reward Points (4.8:1 via Club ITC → Marriott Bonvoy)