I stumbled upon this thread looking for info on ‘Varaha’ & made an account just to say the last couple “Red Mulberries” members posted are not straight M. rubras.
@manyasfigs25 appears to have a hybrid (with some nice looking fruit!), and @resonanteye seems to have a straight M. alba (could be a complex backcrossed hybrid tho).
Here’s a pic showing the difference, with Red Mulberry leaf on the top, an alba x rubra hybrid I found in the middle, & a characteristic White Mulberry leaf on the bottom:
