Hello there Frankie, welcome to Eupedia. I did some searching and apparently somebody here was also wondering the same thing a year ago. Apparently this Mtdna is really rare Here is Wikipedia's description of Mtdna U1. :) Considering Mtdna U1 is also found in India, it is a likely possibility that your direct Maternal line comes from the Yamna Horizon. Hope this helps.
https://en.m.wikipedia.org/wiki/Hapl...#Haplogroup_U1
http://www.eupedia.com/forum/threads...cs-discussions