South Africa possess the bowling variety that can bring down India in Perth, according to in-form paceman Anrich Nortje.
Sunday's tussle will be the third game for both teams at the T20 World Cup, and neither has lost so far.
India posted wins over Pakistan and Netherlands, while South Africa had an abandonment against Zimbabwe before a crushing victory against Bangladesh.
Nortje took 4-10 in that hammering of the Tigers, his best bowling performance in a T20I, after a brilliant century from Rilee Rossouw.
Bangladesh were rolled over for 101, and Nortje believes such a skittling is a reflection of the quality within the Proteas ranks.
Now a Perth Stadium battle awaits with India, whose strong start has seen them earmarked by many as trophy favourites.
Nortje said: "We back ourselves. We see ourselves as one of the best pace attacks there is.
"We've got a great variety. We cover a lot of aspects. We cover a lot of bases with our attack. So definitely as a pace attack, we definitely back ourselves against any team to go out and do what we have to do on the day, to try and get over the line.
"Then we've got two gun spinners [Keshav Maharaj and Tabraiz Shamsi] as well. I'm sure the boys are looking forward to tomorrow.
"But yes, something you work your life towards is to bowl fast, to be able to bowl fast and be one of the fastest. It's a nice feeling, but I just have to focus on the job ahead and what we have to do rather than looking at the speed."
India's Virat Kohli is just 28 runs short of becoming the record run-scorer in T20 World Cup history, with Sri Lanka great Mahela Jayawardene (1,016 runs) presently top of that list.
South Africa will hope to keep the shackles on Kohli, who has been in dazzling form with a sublime 82 not out and an unbeaten 62 in his two knocks, and Nortje says he and his team-mates know their responsibilities.
"Everyone knows what to do on the day, and it's a factor that we've been playing for such a long time and guys have been gelling really well," Nortje said.
"We feel the last two seasons it's been a great team, and hopefully we can win the cup."