Brihat Parashara Hora Shastra
तिर्यक् पंक्तिक्रमेणैव पञ्चपञ्चविभागतः । न प्रोक्ता ङञणा वर्णा नामादौ सन्ति ते नहि ॥ १९२॥
If they are found in any name, „ga‟ may be substituted for „ňa‟, „ja‟ for „ña‟ and „da‟ for „ņa‟ for working out the Dashas and making predictions.
english translation
tiryak paMktikrameNaiva paJcapaJcavibhAgataH । na proktA GaJaNA varNA nAmAdau santi te nahi ॥ 192॥
hk transliteration by Sanscript