Can I travel to India on H4 while my H1B application is inprocess?


I’m currently on H4 visa. I am planning to apply for H1B. Due to unavoidable situation, I have to travel India and return by April 10th.

I will come back to US on H4, Is it going to create any kind of problem to H1B processing?

Do I have to apply for COS seperately once the H1 is approved?

Please suggest.