Originally Posted by
Gardyloo
DEL-SIN is on Jet Airways and is not eligible. However you can go BKK-HKG-DEL-HKG-SIN-PER and still be okay in Asia.
Because the OP said "xSIN" I assume they were just making sure to count it toward the 20, but had no interest in stopping there. If that's the case then you can go BKK-HKG-DEL-HKG-PER. That gives you room for an extra segment.