Can H1B be extended by other employer from India?

USA H1B Visa
1 
My first H1B petition was valid from 11/30/2005 to 10/01/2008

H1B Extension was valid from 10/01/2008 to 09/30/2011

 

I have only stayed for 3 years in USA during this span.

 

Can my current employer (new one, other than one who filed my above H1B), still apply for extension of my H1B for the remaining 3 years which I havent útilized?
2

Yes, your current employer can apply and you wont come under the cap as you have had H1 approved before.