#5 Serbia/Yugoslavia
Like Russia, India too never played against Serbia. But, they had played against them when they were a part of Yugoslavia. Moreover, it is the only World Cup team against whom India boasts of having a 100% record!
In the 1982 Nehru Cup, India had a tremendous side comprising the likes of Manas Bhattacharya and Prasanta Banerjee. Meanwhile, Yugoslavia had sent their B-Team in the tournament. The tournament featured six teams in a single group with the top two going on to play the final.
India came into the match after losing all their previous matches. Yugoslavia B lost all but one in a 2-2 draw against South Korea. In their final match, India sprang an upset and won the game 2-1 thanks to goals from Manoranjan Bhattacharya and Manas Bhattacharya.