I was facing same problem 2 years ago in my idsi. Switched to narva white bulbs (dont know the model but it was expensive around rs1500 or so) which just decreased my visibility. Then i switched to 6000k 35 watts HIDs and installed fog lights with HIDs too. Though it increased vision but not as i expected. Now I m using 90/100 watts yellow bulbs from osram for both headlamps and fog lights n they are way better then any other light options.
Now what I concluded is that white bulbs or white HIDs are only good for shosha and they won't do any good to the driver. Better use 90/100 watts bulbs with proper relays for both head lamps and fogs.