Former England captain Michael Atherton feels in-form India are the "best team by a country mile" in the ongoing World Cup. India on Thursday thrashed Sri Lanka by 302 runs to record their seventh straight win and become the first team to qualify for the semifinals. India first piled up a mammoth 357 for 8 in 50 overs and then bundled out a hapless Sri Lanka for a paltry 55 in 19.4 overs to register their biggest victory by margin of runs in the 48-year history of the tournament. (IND Vs SL Scorecard | Pics | Report | Points Table | Full Coverage)