Fennell was visiting India to carry out an inspection of progress and met with Home Minister P Chidambaram, Sports Minister M S Gill, Urban Development Minister Jaipal Reddy and Delhi Chief Minister Sheila Dikshit.
He said: "The Government of India has put in a lot of resources to provide security, and not only for athletes and spectators attending the 2010 Commonwealth Games."
The 2010 Commonwealth Games, the biggest multiple-sport event staged in India since the 1982 Asian Games, has been under the security spotlight since last year's terrorist strike on the country's financial hub of Mumbai and the attack on Sri Lanka's cricket team in neighbouring Pakistan.
Fennell said: "There will always be concerns, but we're happy with New Delhi's intent and how seriously the organisers have taking the security aspect."
During his latest visit, Fennell was given a detailed presentation on the security arrangements by New Delhi police commissioner Y.S. Dadwal, who will head security for the Games.
Fennell was accompanied during the visit by Mike Hooper, the chief executive of the CGF, and they also discussed the progress of the venues, the slow pace of which have been criticised both in India and abroad.
Fennell said: "This visit was to see the progress.
"The Organising Committee is proceeding in the right path.
"One is never satisfied till the finishing work has been done but overall I got the feeling that things are under control.
"Delhi is doing extremely well to make the ensuing Commonwealth Games a grand success."
The security measures for the Games in the capital will also be discussed at a special meeting of security commanders from all participating nations on September 20 and 21 here.
Suresh Kalmadi, the chairman of the Indian Olympic Association (IOA), said: "The security commanders of the 71 participating nations will meet to discuss security measures to for the athletes, Games officials and visitors."
The Commonwealth nations' security agency Intelligence Risk also submits regular reports on the steps taken by the host country for ensuring a safe and secure environment for the Games, he said.