Had anyone said before the ICC Cricket World Cup 2015 started that the Indians would win their first four matches, it would have been met with far less incredulity than had that someone said the Indians would bowl their opponents out each game. Really, who would have thought this possible, 40 wickets out of a possible 40 (albeit including a few run outs) from the first four games? But that's what has happened, with the bowlers striking hard, be it when defending targets or bowling up front.

It was not without reason that the defending champions began the tournament with a bowling line-up that paled in comparison with the more famous, most daunting batting combination. Well, after four games how wonderfully have the bowlers, pacers and spinners alike, turned brickbats into bouquets.

This has been possible because it wasn't skills that were lacking at any point, something I have stressed on earlier. Rather it was about application of mind and body together, the ability to make plans and execute them to a nicety that has brought about the success.

"Both Mohammed Shami and Umesh Yadav have been nothing less than exemplary. As a pair, their concerted effort against the West Indies is one of the finest, as well as the fastest, I have ever seen from an Indian pair."

They bowled with pace, aggression, and most importantly hit the right lengths. Sometimes, bowlers get carried away by the extra bounce and pace on offer but that wasn't the case here. But both showed considerable discipline.

Yes, the strip was hard and bouncy, as Perth wickets tend to be. But still, you need to go there and execute your plans. So full marks to the way they have bowled. I was equally impressed with Mohit Sharma. He is a trier and sustained the pressure created by Shami and Umesh. I have always advocated the three-seamer strategy abroad and it has been fully vindicated.

The spinners carried forth their momentum. They have really complemented the pacers, especially Ravichandran Ashwin, who I think has been the best bowler in this World Cup, so far. He has wonderfully used his variations and guile, varied his pace and length, apart from striking at crucial moments. Ashwin has created many a doubt in the minds of the batsmen and that has been a treat to watch.

Ravindra Jadeja, too, has performed his role to perfection, and India now have a lethal bowling unit - 40 wickets in four matches demonstrates just that. This is champion stuff.

Though there were a few hiccups in achieving the target, it was a comprehensive win nonetheless.

"Mahendra Singh Dhoni yet again showed why he is such an integral part of this side. As they say, a match is never over when Dhoni is batting. He brings so much composure and calmness into the middle."

When Dhoni is batting with the lower-order, he takes care of the batsman at the other end too. He is unfazed by pressure and bats in a calculated way that has become the hallmark of his batting. Finishing an innings comes so naturally to him.

Credit to Ashwin also, for the maturity he showed in holding his end up and farming the strike to Dhoni. That's what all-round utility is all about and it is heartening to see Ashwin stepping up.

In the face of such a small target, whether it should have come down to Ashwin to lend Dhoni a helping hand is a different matter. The Indian top-order was put to the test by some good bowling initially by the West Indian quicks, who applied the pressure forcing some Indian batsmen to crack.

Jerome Taylor, in particular, was impressive and went all out for wickets. Seeing his spell off was crucial and Virat Kohli handled him well. I particularly liked the way he forced Taylor, who was moving the ball away from around the off stump, to adjust and bowl more towards him. And when the bowler did just that, Kohli was good enough to take him for runs towards mid-on and mid-wicket. That indeed was a fine period of bowling and batting.

The problem the West Indies had was with the lack of adequate support for Taylor. When it comes to defending low totals, it certainly takes more than one bowler to affect a turnaround. Then again the fact that the Windies bowlers didn't give it up as such augurs well for the rest of the tournament.