You are asking too many details ( which of course are valid queries, but you may not get exact answers from people here...and it will delay your process....). For example, if you ask the room size requirements for CBSE affiliation, no one here may be able to tell you... My honest suggestion to you would be to visit any nearest private school ( of not the area where you want to open your school---- as they will be your contenders then).... ask them and they will help you for sure...
Secondly, if you are not clear on requirements etc like you asked above..... go and meet some "clerk" in CBSE office Or Haryana Board office and he will be able to give you even a xerox copy of the earlier files and you can just get your documents ready..... he will also be able to tell you pros and cons of all possible ways......also loopholes in the system........they do this work daily..............people here have told you at high level to the best they know..... it may not be complete but should be good enough for you to kick off if you are really serious.......... keep us posted on progress....
btw,,, you started this thread around one year back......... what is the progress after that? That will show how serious you are