India vs SA series: Unsatisfied Virat Kohli wants to be 'ruthless' in Kotla Test

New Delhi: Test captain Virat Kohli on Wednesday said that India are not satisfied despite taking an unassailable 2-0 lead in the series and insisted that they will be `ruthless` against South Africa in the fourth and final match at Delhi's Feroz Shah Kotla stadium.

ALSO READ: Virat Kohli slams ICC on pitch row, says even day-night Test ended inside 3 days

"We want to be ruthless in terms of mindset. We are not satisfied with two-nil. If we have any chance to go three-nil, we try to achieve that by giving our 100 percent," said Kohli, who will captain his side for the first time at his home ground on Thursday.

ALSO READ: Sourav Ganguly praises 'passionate' Virat Kohli

Asserting that partnerships are key to success in Test format, the 27-year-old admitted that his batsmen have failed to apply themselves properly in the ongoing series and expressed that they are keen to rectify it in the inconsequential last match.

ALSO READ: History will judge captain Virat Kohli, says critical Bishen Singh Bedi

"We haven't applied ourselves properly. Partnerships are the key. We have lost wickets at wrong times. It has been just two test matches. It is not like we have done that regularly. We played really well after the Galle Test (against Sri Lanka). So it is just the matter of getting into that mindset and make sure that people want to bat four sessions for the team and make sure that we extend our partnerships from 70 to 120 or 150 plus. That is how strong teams perform in Test cricket. That has been lacking from our end in this series," the captain added.

India are leading the four-match series after comprehensively defeating the tourists by 124 runs in the third Test. With the win, India also ended South Africa's nine-year winning streak in away Test series.