There seems to be some confusion as to whether the Khalistan Zindabad Force has accepted responsibility or not.
A beakdown of the emails received is as follows:
1st email - On the 25th of May, Akash Radio received an email signed by Ranjeet Singh Neeta, on a letterhead document of KZF stating that they claim full responsibility of the attack.
2nd email - On the 28th of May another email was said to be received, but this time from an altogether different email address, in which Ranjeet Singh Neeta denied any involvement in the Vienna incident and apologized for the hurt caused to the Ravidasiya community. It blamed Indian agencies and Punjab government for the incident.
However soon after, in another (3rd) e-mail sent to Akash Radio today 28th May, the Khalistan Zindabad Force has issued a statement giving reasons for the Vienna incident. It claims that the fight took place in the temple because the said priests were gravely dishonouring Guru Granth Sahib ji, further claiming that they had distorted ardas and used to touch rumalas (covers) to their feet before they were put on Guru Granth Sahib Ji.
The 3rd email was sent from the same email address as the first email but this time not on the KZF letterhead.
According to experts the 2nd email was FORGED, the 2nd email is a reproduction of the initial email, in which the date has been altered from 25th to the 28th (easily done) and the signature has been replicated, exactly the same as the first email.
Below are the 2 emails sent to Akash Radio:
