In Mythological and folklore films, sages and priests will be more and they appear with beards. Even, sorcerers and demons used to have beards. Except sage Narada, everyone like Vasishta, Bhrugu,Valmiki, Jamadagni, Vishwamitra etc. used to have beards.
For beards and mustaches, the makers used Maxfactor's gum at that time. Senior actor Nagaiah played the role of sages many times. Gummadi used to joke saying no one ever used more gum than us. Maxfaster Company should felicitate us. He said he even wrote a letter to the company.
Jaggaiah used to have allergy with the beard and mustache. With great difficulty and on the pressure of KS Prakasha Rao, he played the role of Parasurama in Renuka Devi Mahatmyam in 1960. Even in Preminchi Choodu (1965), Jaggaiah was seen in disguise. However by that time usage of gum reduced.