#1 Argentina
Whichever World Cup Argentina plays, they are always the favorites. Such is their legacy, and India got the rare opportunity to face them in the 1984 Nehru Cup.
The AIFF invited Argentina and they replied positively. They didn't send their full strength team but it boasted of players like Jorge Burruchanga (scored the winning goal in 1986 FIFA World Cup) and Ricardo Gareca.
India came after a 1-2 loss to Poland and Argentina was riding on a 1-0 victory over Romania U-21. In their match, India managed to hold on the mighty Argentinians till the 78th minute. However, a sublime strike from Ricardo Gareca in the 79th minute sealed the deal.
The scoreline would remain the same and Argentina won the game 1-0. However, they failed to make it to the final after a shock 1-0 defeat at the hands of China in the group stages. Nonetheless, they finished third in the group and went home with the bronze medal.