Referring to the complaints that the airport project would adversely affect the environment and ecology of the area, Chandy said 'environment degradation had already taken place'.
The government had taken a 10 per cent stake in the Rs 2,000 crore project prmoted by Chennai-based KGS Group at Aranmula in Pathanamthitta District, about 125 km from here.
The project was proposed and sanctioned during previous LDF rule and 'now they are opposing it', Chandy said to a question during cabinet briefing.
However, he said the UDF governmnet would not acquire any more land for the project and also steps have been taken to de-notify the lands acquired during the previous LDF rule, which was not necessary for the project.
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The project had ran into trouble with local people protesting against it on the ground that it would endanger the environment and there was no need for an airport in that area.
The MLAs who signed the petition included AICC secretary V D Satheesan, M V Shreyams Kumar (SJD) and T N Prathapan (Congress).
A local resistance group 'Aranmula Heritage Protection Council', backed by various political parties and culatural outfits, has been running a campaign against the project arguing the vast stretches of paddy field will be lost if it was allowed.
The project promoters, however, have rejected this contention holding that much of the land acquired had been lying fallow for decades.