The integral part of the strategy is to make risky choices.
For the second consecutive match, Indian think tanks, led by coach Graham Reid, decided to use an alternative player card and paid off.
Opposing defending champions Argentina, the match is always expected to be among the defenders on both sides.
India added their defense with additional advantages of additional drag-flicker by bringing Varun Kumar for Birendra Lakra.
Making his Olympic debut, Varun did not disappoint when he broke the deadlock before India carved a 3-1 victory.
Victory, their third in four appearances in Pond A, sealed a perforated quarter-final place with a match against host Japan on Friday.
India began the trial on attacking notes, controlling the ball on the wing, but the success of avoiding it when the Argentine defense foiled their efforts and noticed not conceding a penalty angle.
India has their chances of leaving early in the contest, but the wishes of the striker who familiarly failed to connect the goal ball continued to hit Singh Manpreet’s man.
Argentina slowed the block, India had their first chance in the fourth minute when Singh Dilpreet’s shot from close range was cleared by goalkeeper Jaun Vivaldi.
India wasted several opportunities in the last five minutes from the first quarter.
With the Argentina’s backline left the gap, Amit Rohidas on one chance failed to control the ball and just before Hooter, Simranjeet Singh was careless by dribbling in front of the goal.
The same story count in the second quarter also with India claimed most of the ownership and shot ball in goal (16).
Argentina satisfied dictating speed and ensuring clean sheets.
The team went to the aimless round or a penalty angle.
Argentina let their guards down and India immediately claim the corner of the back-to-back penalty was wasted by Rupinder Pal Singh.
A minute later, with another penalty corner came, India switched Rupinder with Varun and met with instant success.
Varun managed to sneak the ball past Vivaldi, who got the gloves for it, but the ball shot past him.
The aim was awakened by Argentina from sleep and their counterattack was followed.
Argentina neutralized the advantage through Maico Casella in the 48th minute.
India brought their game to the field at the OI Stadium and was attacked without stopping.
With two minutes to go for the last hooter, the experienced Argentine defense with an average age of 30+ withered under pressure and heat.
In the 58th minute, Vivek Sagar put India in front after he knocked rebounding from Dilpreet and the ball kissed the Vivaldi stick before finding a net.
HarmanPreet Singh then put a final touch with clinical performance with Dragflick from the eighth corner of India.