Extend H1B visa from India without travelling even once to US

[rahulraj.004]

Hello All,

I got my H1B Visa petition approved from Oct 2015 till Sept 2016. i.e only for one year.

Unfortunately i cannot travel till Sept 2016, and want to travel after that. Have not stamped my visa yet.
Below is my set of questions.

1. Will i be able to apply for an extentions from India without travelling ?
2. If Not, Can i apply for a new petition, even before my current petition expires on Sept 2016 from the same employer ?
3. If i apply for a petition will i be eligible to apply for this petition without CAP ?
4. What if my petition expires on Oct 2016 ?, will i be still eligible to apply for a fresh petition without CAP?
5. Also is it wise to do the Stamping, or it doesnt matter ?

Thanks in advance !