If name of the Pitru is not known, then Yagnamma for ladies and Yagnappa for gents to be used. If Gotra is not known of the Pitru, then Kashyapa Gotra to be used.
For males ‘gotram’ to be used and for females ‘gotraam’ to be used.
For males’ name “sharmanam” and for females “daam” to be added
