New Delhi [India], January 30 (ANI): Flight services were disrupted at the Delhi International Airport owing to the thick blanket of fog that enveloped parts of the national capital on Tuesday morning. The dense fog engulfing the Delhi-NCR region lowered visibility in many areas. Several domestic and international flights are running behind schedule following the layer of fog in parts of the country. Delhi Airport issued an advisory on Tuesday stating that flights not meeting the CAT III (Category III) standards might encounter disturbances while landing and taking off. The Delhi Airport advis…