Thanks to its successful (at that time) two stroke models.. Yamaha has always been associated with Performance (
and therefore with Youthness) in India,
even when the R15 and FZ/Fazer weren't there.
Therefore I believe that the "Yamaha" brand is definitely much bigger than the R15 or FZ brand.
But with the "Pulsar" its a different story... The "Bajaj" brand brings in mind different names like "Chetak" (
Hamara Bajaj), the ubiquitous "Autorickshaws" and even "Bajaj electricals" and "Bajaj Amla Hair Oil"
.
But utter the name "Pulsar" and nothing else comes to mind but a "Performance" oriented motorcycle made by an Indian bike maker.
Between "Pulsar" and "Yamaha" in India.. I'll pick "Pulsar" (
I own one after all 
)