During the "Veera, A Free Spirit" welcome-back party for him at the Royal Turf Club in Bangkok on Sunday, Mr Veera said he would tell everything from the first second when he reached the area where he was arrested and would also elaborate on the person who had initiated the visit to the location.
He was referring to the arrival of his group at a disputed border area in Ban Nongchan village of Sa Kaeo province on Dec 29, 2010. The group included former Democrat MP Panich Vikitsreth.
Mr Veera said was withholding all of the facts for the time being for the sake of international relations and the efforts by the National Council for Peace and Order (NCPO) to promote national reconciliation and reform.
"Someone asked me not to tell all now. That person went out of his way to help me. How can I do this to that person?" Mr Veera said. He said he would like to thank NCPO chief Gen Prayuth Chan-ocha in person for coordinating his release.
He said a senior figure asked him not to comment on a certain political issue for the time being.
However, Mr Veera blamed the past governments of former prime ministers Abhisit Vejjajiva and Yingluck Shinawatra for not sincere in trying to help him in Cambodia and consequently that led to him being prosecuted after his arrest.
He said his release showed that Cambodia wanted to build good ties with the NCPO. There might be other reasons for his freedom but they were beyond his perception, Mr Veera said.
Regarding Sunday's party, Mr Veera said he was glad that there were people who loved him.
Apart from his family members, those at the party included anti-Thaksin Shinawatra demonstrator Gen Preecha Iamsuphan, former senators Prasarn Maruekpitak, Khamnoon Sitthisamarn and Rosana Tositrakul, national artist Naowarat Pongpaiboon and other activists.