My granddaughter Ava who is just three has been making me listen to these two songs jalakalatalalo , Varinchi Vachina (on some days quite a few times)for the last two years. One of the four actresses that appear B. Saroja Devi is well known. I found out another L.Vijayalakshmi was a popular dancer and actress who married at the peak of her career and left films. Apparently she was inspired by the dances of Kamala Laxman. Vijayantimala and others and her father transferred to Madras for her training and after a film career of around 7-8 years married following parents' advice and is now a chatered accountant working for Virginia Polytechnic. Here are a couple of dances by her L Vijayalakshmi-Dance & Music-Gundamma Kadha-2in1
A brief biography in the article MGR learnt Bangra for a month to dance with L. Vijayalakshmi and two podcasts of interviews in Telugu and English ( a few minutes in Tamil with a cameo appearence bit of an interview with Chakrapni)
Mohana Murali Interviews Legendary Dancer Smt L. Vijayalakshmi 1 of 2
Mohana Murali Interviews Legendary Dancer Smt L. Vijayalakshmi 2 of 2
and some videos at the same site like NTR, L Vijayalakshmi: Andaala Naaraaja Alukelara.
There are links to some of her dances among other things in cinemachat (the blog seems to have some links to Melbourne).
Aside: In the second interview, at one point, she says 'it is classical but (kaani) graceful'. She seemed to enjoy her dancing and (to my untrained eyes)as good as many of the more famous dancers of those days.