In its earlier orders, Government had allowed all Group B Officers, including those who are not entitled for air, to travel by air from the nearest Aerodrome of their Head Quarters. But this revised order has taken away the said facility.. 

Central Civil Services (Leave Travel Concession) Rules, 1988 
Relaxation to travel by air to visit NER, J&K and A&N(Please click the link below:) 
http://ccis.nic.in/WriteReadData/CircularPortal/D2/D02est/31011_3_2014-Estt.A-IV-26092014-A.pdf