India lost the five-match Test series 1-4 against England but skipper Virat Kohli still thinks that the current Indian team is the best.

India coach Ravi Shastri had claimed going in to the last Test that he rated the current Indian team better than those in the last 15-20 years.

"Nothing to take away (from England), the endeavour of this team is to travel well, compete and win. If you look at the last three years, we have won nine matches overseas and three series. I can't see any other Indian team in the last 15-20 years that has had the same run in such a short time, and you have had some great players playing in those series," Shastri had said at the time.

While Sourav Ganguly and Sunil Gavaskar questioned Shastri for his comments, Kohli backed his coach when asked by a journalist after the end of the fifth Test at Oval.

At the post-match press conference, Kohli was asked by a reporter, "The Best Indian team in the last 15 years! Do these tags put pressure on you? Do you actually believe you are?"

Kohli with a deadpan face, retorted, "We have to believe we are the best side. Why not?"

To which the journalist's rebuttal was, "The best team in 15 years?"

Kohli's returned the question back, to which the journalist said, "I am not sure."

"You're not sure? That is your opinion. Thank you," was Kohli's response, which ended the rally of questions.

When Kohli was asked about the series loss being hard on him as a captain, he had brushed aside the negatives, stating that he looked only at the positives as a team. He lauded his team for not giving up.

"What matters to me is the attitude you play your cricket with. We said at the end of the fourth game that we won't be throwing in the towel and we haven't. We were a bowler short in the second innings as well but even then the batsmen came out and played like that. Lot of teams in the past have basically just given up but we did not," he said.

READ - Did think about going for victory at tea time, says Kohli after Oval loss

Kohli also said that they would take the loss as a lesson and work on their faults.

"We do not think like people on the outside and these type of series, shows you exactly what the character of the individual is and I see that as an opportunity and not an adversity because if you keep winning all the time, lot of things are swept under the carpet and you don't realise the faults you need to work on," Kohli said.

READ - A series of what could have been: Opinions float after India lose 4-1 to England

"It hasn't been tough at all. I know people conveniently choose not to look at that but that's not us," he added.

Following the 1-4 loss, India's next overseas assignment is the tour of Australia in December and Kohli talked about his team's chances.

READ - Virat Kohli rues missed opportunities after 4-1 series defeat to England

"The progress has been there, definitely. We need to recognise when the situation is in our favour and how to solidify that situation even further. We have to make sure that the opposition cannot get back in to the game," he said.

"More often than not, we have given the advantage to the opposition rather than them brilliantly turning around a situation," he said.