Hi Ravi,
I am afraid, I am not able to reproduce the issue . I have attached a simple sample application
here.
Clicking the bar item File->New will add a windows form which contains a Grid Control. I have added more than 20 forms and couldn't reproduce the issue.Could you please modify the sample to reproduce the issue?It will help us to resolve it as early as possible.
Thanks for choosing Syncfusion Products.
Regards,
Poly