Bipalium

I think Namitha is right.i changed the id.i just googled and found the suggestion similar to Namitha's.thanks for the suggeston!!

It is definitely a flatworm, like Marta said. But I don;t think it is Planaria.
It looks more like "Bipalium" to me. There are so many of these eerie little meek creatures around our place too, especially since it is the rainy season. Unlike Planaria, it is harmless and very slimy.

Thanks Marta for the suggestion!!

actually its found near our house.i would say the location is near the sea.

Can you tell me more about the spotting? was it near sea water or fresh water?

Is for sure a type of flat worm. I have to see if I can help more in the ID.