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I've written a tutorial on choosing sensors for line followers at http://www.societyofrobots.com/member_tutorials/node/353.I think you will not be able to use the TSOP sensors for line following with much success. From my experience they are too sensitive - they will get triggered even by the little IR light that gets reflected from the black surface and the robot will think the sensor is on the line!
[...] to get maximum efficiency which sensor should i use
or make a light controlled bias arrangement for the input stage, as any strong light source will otherwise swamp the photo device and render it blind to your wanted signal.
Hi,More light on the photodevice can be biased by more current through it, to keep a "balanced" output.This needs to be covering only DC and slow variations of course, as the modulated signal should change the output form the setup.