The exact location of the runway will be finalised only after testing the soil.
An expert team, which will arrive on Sunday, will assess the soil condition for the construction of the airport runway.
The Rs 485-crore airport project is a joint venture of the Airports Authority of India (AAI) and the governments of Punjab and Haryana.
The Kochi CBI unit is currently taking follow-up actions based on the report of the Malappuram Superintendent of Police in the matter.
The 'Heal in India' initiative aims to positioning the country as a global hub for medical and wellness tourism.
Health Minister Veena George said the situation was under control though several districts remain under surveillance.
There were many shortcomings in the techno-economic feasibility study conducted earlier by KSIDC in association with a US-based consultancy firm.
The move follows a recent meeting convened by V Thulasidas, special officer for the airport project, which expressed doubts over the 2.7-km-long stretch suggested for the runway in the preliminary report for the project.
The IATA has expressed its inability to change the code without a "justifiable reason primarily related to air safety".
Agartala airport, earlier known as Singerbill Airport, was renamed after Maharaja Bir Bikram Kishore Manikya Bahadur in July 2018.