It's better that u buy a DVD rom and CD writer seperately. There may be problem with lens later on and it's better to have two ROMs instead of one and it costs a 200-300rs more....
See:
DVD Rom drive = rs. 1400
CD writer = rs. 1250
Total = 2700rs. or so
Combo drive = Rs. 2500
For CD writer , get Lite-On 52327S or 5238S or Sony CD writer.
For DVD ROM get Lite-On 165/166
For Combo (in case u want only this) get Lite-On 5232K
And oh yeah search b4 u post.
*www.thinkdigit.com/forum/viewtopic.php?t=19555&highlight=combo
*www.thinkdigit.com/forum/viewtopic.php?t=9976&highlight=combo
*www.thinkdigit.com/forum/viewtopic.php?t=13982&highlight=combo