Thnx for the quick response!

After further digging i came across a reasonable solution which got my headphone jack to work, though not with much quality, sound shifts between left and right sometimes. Have not tried the mic yet. The lines i placed in alsa-base were

options snd-hda-intel enable=1 index=0 model=lenovo
alias snd-card-0 snd-hda-intel

also found the following forum for my laptop, surprised that it took 3 hrs of googling to get to it.
http://ubuntuforums.org/showthread.php?t=753679