For people who are treated unfairly and fall into an EEOC category, or maybe fall into an EEOC category, especially those under scrutiny of Indian managers, I suggest you open an EEOC inquiry case right away after an event. Because there is a timeline restriction, and the EEOC intake process takes a long time, do it as soon as possible after the event happens. You can always add more events later.
Also, in the inquiry document, try to include more details or even supporting document references or witnesses; that way, it may secure an early charge date as well. If you wait too long, all those events may become background info, and you may not get compensated for those events.
File the EEOC cases, let the EEOC know those Indian managers are ruining Americans' lives.