u/SetGuilty8593

It's not a band, it is one of the rarest blood types. 1 in 10,000 people have this in Mumbai, but globally only 4 in a million do.

People with this blood type can only receive blood from those who also have Bombay blood.

It can be mistaken for type O blood in usual tests. I'm no doctor, but if you are type-O then you should consider donating, they would test for this phenotype and register you as a rare donor.