how far is the Nearest Gas connection from your house in either direction. - if it is over 500 meters away the non-availability is plausible excuse from SNGPL due to development work required by the locality developer. If you are in DHA time to kick awake the administrator through your lawyer.
. if it is in 100 meter access in either direction within your street, make a case and hire a lawyer. DHA & other housing scheme developers are hand in glove with SNGPL to play possible efforts to irritate public, ultimately switch for LPG which is sold by private gas providers.
How did you obtained completion certificate to occupy house when the Utility as in GAS is not connected, it is duty of DHA to provide SNGPL with infrastructure upto each lane for onward connectivity to the user upon construction. SNGPL charge hefty amount for new connection.
DHA sectors / phases with no infrastructer water lines, gas, power lines does get NOC for construction from DHA office.