Need help, Immigration gurus...

My passport expires on july 2014. I am planning to go to India on Feb and return back on or around May. I am on GC.

My concerns are..

1. Will I get into trouble in Indian airport for having passport Validity less than 6 month. (will land in Bangalore)
2. Will I get in trouble re-entering USA.
3. Can I apply for Temporary Passport with Nepal embassy and travel using it till my MRP is issued. (has anyone travelled with Temporary Passport)


Any suggestions will be highly appreciated.

thanks.