Thanks for the response folks. I am gonna call the UA folks tomorrow and see if they would allow the SFO-(UA/LH)-LHR-(LH)-FRA-(LH)-BLR routing.
I also want to pursue the SFO-(ANA)-NRT-(SQ)-SIN-SQ-HYD routing if possible.
I can't seem to understand the logic of * A that it takes 180k for business class to Sri Lanka..and 240k to India.