The Central Industrial Security Force (CISF) is in charge of security at various airports in the country.
Stressing that the most important priority is safety and security, the Minister of State for Civil Aviation said a lot of things are being done in this regard.
"One of the most important things we are doing there is actually trying to go for a unified command of CISF...," Sinha said, adding that an integrated system needs to be looked at.
There are over 90 operational airports and around 74 of them have scheduled operations of flights.
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Noting that there is a "very dramatic headroom for growth" in the aviation sector, Sinha said tremendous investments are required for airports.
"Rs 2.5 to 3 lakh crore investments are going to be required just in airports. I am not talking about land acquisition, which will be very expensive...," he said while speaking at the annual general meeting of industry body Ficci.
Responding to a query about Air India, the minister said there is no need to worry and all of its operating parameters are pointing upwards.
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About the impact of demonetisation, Sinha, who is also a former Minister of State for Finance, said there would be some decline in GDP growth in the current quarter but growth would pick up once remonetisation happens in January.
"There will be some decline in GDP growth rate. All economists have said and I also agree with them. At this point of time, it is difficult to predict how much impact (demonetisation) would have on GDP.
When the notes come back into circulation in January, Sinha said his hypothesis is that GDP growth rate would be more than the projections.
The deferred consumption in November and December would happen when the currency would be back in circulation. "I believe this will increase GDP....There could be a rebound," the minister said.
He also noted that it would be "too difficult" to predict what would be the economic behaviour when the currency will be back in circulation.