Took a handful of Dry Red chillis and microwaved for 30 secs.
Allow cooling for a couple of minutes. Then pulse them in a mixer for a couple of times.
Make sure you don't run it more than 3 -4 times, check and remove if the big ones don't get ground well.
After the second round. everything was ground to almost equal size.
Roasting Peanuts / Groundnuts in Microwave:
Roasting Time for Peanuts in Microwave - 4 -6 mins, depending on your microwave and the nuts. After 4 mins, it was done for me. Though once it turned crispy only after 6 mins.
Precaution to be noted: If you are using a plastic plate or bowl for roasting, it is not advisable to microwave for more than 2 mins at a time. Instead, you can use the glassware.