without a doubt there is B1 visa fraud. If the US immigration checks those who travelled on b1 visas to US from Infosys they will figure that these individuals stayed for 3 months doing actualnwork on billable projects and would have traveled several times.
this is old problem as I saw this type of thing going down in the 90s where they would only hire filthy smelly tech retarding coliars no matter how dumb and incompetent. I tried to get a developed world techie that actually knew the tech but was told to interview some smelly in bombay . when asked how can it even make it here by Monday its Friday in stinky land how can it even get a visa I was told they got it covered seems they were lying to the visa officer that they were coming for training actually they were working.