New Zealand beat India by eight wickets in the inaugural World Test Championship final at Southampton on Wednesday.

Two years on from their agonizing Super Over loss to England in the 50-over World Cup final at Lord's, New Zealand's men claimed their first major global title.

New Zealand finished on 140-2 with more than seven overs left after the match was extended into the reserve sixth day after two days play was completely washed out.

India off-spinner Ravichandran Ashwin turns down New Zealand to 44-2 after removing both openers.

But New Zealand captain Kane Williamson (52 not out) and Ross Taylor (47 not out), the team's two most-experienced batsmen, shared an unbroken stand of 96 to seal the victory.

Tim Southee took 4-48 in 19 overs, with Rishabh Pant (41) the only India batsman to manage a score above 30 in the innings.

This final marked the culmination of a two-year cycle of series to determine Test cricket's first official world champions.