hi sir, i scored 90.29 percentile (ews category) in cat and got call from iim rohtak. so what should i wait for other iims call or whai will i do next plz help.

Hi navin,
You can certainly hope for few other calls too.
When it comes to colleges, it is always a good strategy to attend interviews of multiple colleges. There is a lot of unpredictability in case of interviews. It might not turn out to be your best-day. Hence, don't rely on few colleges entirely.
Make a thorough research on IIM-Rohtak, if you are willing to join the college even as last resort scenario, then, certainly apply for it as a backup option.
Start with a full-fledged serious preparation for interviews since you have to make up for your lower CAT scores by fantastic performance in GDPI
Wish you best of luck:)