This has been reported in Tathya.in, Kalinga Times, and Odisha.in so far. Odisha. in has the two letters.

We appeal to the readers with interest in Orissa to contact their local organization (Outside Orissa, the local Orissa/Oriya/Kalinga organization) and through them send a similar letter to the PM and CM at the earliest. The planning commission has been asked by the PM on September 14th to make the location decisions in two months. So time is running out on this.