"The budget for the Games will be increased slightly considering the escalating prices of raw material used in construction. The prices of steel and cement are currently high and we have to take that into consideration," Kalmadi said on Tuesday.

"We are building an international standard stadium here and we can't compromise on that," he added.

Kalmadi, however, was concerned about the security arrangement for the Games in the wake of the Mumbai terror attacks.

"We are very concerned about the security arrangement and we are taking additional steps. We are in talk with the Home Ministry and the Lt Governor is meeting with experts from Israel. We are procuring all required equipment to ensure 100 per cent safety. We can't afford to lower our guard in these times," he said.

The CWG organising Committee Chairman, who was on an inspection of the Nehru Stadium, reiterated that the work was on schedule and would be completed by December.

"Work is on track no doubt. We have completed 30 per cent of work, so we are on target. Most of the infrastructure will be ready by December this year, by March 2010 the test events will start and in August we have the Games.

"Work is going on in full swing. The warm up area is getting ready, the sitting area in the stadium will be accommodate 60,000 spectators as the upper tier is also coming up. Over all, I am very happy with the way things are going," Kalmadi said.

"There were some concerns about the cycling track as the International Cycling Federation wanted a closed and indoor arrangement and we have acceded to it, so now there is no problem," he added.

With the CWG coming to India people will have high medal expectations and Kalmadi said he will ensure that there is no lacuna in the trainings of the athletes.

"We have received Rs 650 cr from the Prime Minister for the training and preparation of the athletes and we will ensure that it translates into medals," he said.

Kalmadi, who is a Rajya Sabha member for Congress, however, is not concerned about the forthcoming Lok Sabha elections and its impact on the preparation of the Commonwealth Games.