Katha KV 8.2. What is Paschimabavika Sotapanna?

This question is based on a Dhamma talk give by a Sri Lankan monk.

This talk is in Sinhala language. However if you listen to it you can pick-up the Pali words related to this topic.

http://www.waharaka.com/deshana/listen. … d=CD089-06

According to him some Sotapanna take a birth in a place which is not belong to any of the three realms (Kamavacara, Rupavacara and Arupavacara)
This teaching appears to be contrary to the teaching of KV 8.2.
Are any of you familiar with this.

There is some discussion about KV8.2 in the following link.