The flagship Goods and Services tax bill that was recently passed by parliament has been hailed as transformative in many ways. But truck drivers on India's highways hope it will rescue them from what they call "harassment" at the border check-posts of the country. To get the pulse of the problem, NDTV did a road trip on a truck from Maharashtra to Karnataka, crossing from Kolhapur district to Belgaum. And the picture became amply clear at Kognudi -- a small sales tax check-post on national highway number 4 in Maharashtra.