What is the place of pronunciation for the vowel character 'ऋ' (Ri)?

According to Sanskrit and Hindi phonetics rules ($\text{ऋटुरषाणां मूर्धा}$), the vowel 'ऋ', along with the retroflex consonants ($\text{ट, ठ, ड, ढ, ण}$) and the sibilant 'ष', are pronounced from the Murdha (retroflex/hard palate region).