Boil penne pasta in salted water until al dente; drain.
Heat olive oil in a skillet, sauté garlic paste and red chili flakes for 1 minute.
Pour in tomato sauce and salt; simmer for 8 minutes until thickened.
Stir in heavy cream and cooked penne pasta, tossing continuously over medium heat for 2 minutes.
Serve hot topped with grated parmesan cheese.