Natyashastra
तकारे तु भवेच्छम्या एकारे ताल एव च । त्रकारे तु भवेच्छम्या ककारे ताल एव च ॥ ६२॥
At the syllable ta there should be a shamya, and at the syllable e there should be a tala. At the syllable tra there should be a shamya, and at the syllable ka there should be a tala.
english translation
takAre tu bhavecchamyA ekAre tAla eva ca । trakAre tu bhavecchamyA kakAre tAla eva ca ॥ 62॥
hk transliteration by Sanscript