When 9/11 happened in US supposedly done by Muslim groups, govt did not engineer RIOTS on Muslims. Whatever reaction took place against a common Muslim, US govt strongly put it down.
But here in India, when Godhra happened, Govt in power engineered RIOTS against innocent Muslims living several hundred kilometers away from site of accident.
Law and Order proved Tame, Judiciary proved no different. Leaders whose responsibility was to stop violence against innocents rather blew dog whistles telling majority that this is 'their style' of dealing with situation and sought to get political mileage out of it.
This difference you must keep in mind before glossing over why in US Muslims act differentrly than in India