Natyashastra
चकारे तु भवेच्छम्या द्वितीये ताल एव च । पुकारे तु भवेच्छम्या टकारे ताल एव च ॥ ६०॥
On the syllable "cha", there should be a silent (shamya) stroke, and on the second syllable, a tala stroke. On the syllable "pu", there should be a silent (shamya) stroke, and on the syllable "ṭa", a tala stroke.
english translation
cakAre tu bhavecchamyA dvitIye tAla eva ca । pukAre tu bhavecchamyA TakAre tAla eva ca ॥ 60॥
hk transliteration by Sanscript