HELP !!! SEEKING ADMISSION TO 2ND STD...

HELLOOOOO !

I'm seeking admission from my son in 2nd Std, who is currently studying in CBSE board in another state. I'm staying in South Delhi but i dont mind getting him into a good school in South Delhi or Noida.

QUESTIONS:

1. When do the Admissdions start for Class 2nd onwards in these Schools (Noida and South Delhi)
2. Will my son face difficutly in admissions since he is not from Delhi
3. Could you pls recommend the best schools in the above preferred areas.

Appreciate Answers to my queries.

Thanks

Dipak