To speed up the ripening process, you could set them on a sunlit windowsill or you could keep them at room temperature in a bowl with a ripe tomato or banana or in a closed brown paper bag for a few days.
ठंडे तापमान में टमाटर का स्वाद बिगड़ जाता है इसलिए इसे फ्रिज में मत रखिए ।