We earlier reported a distinct frequency of 23% EGFR mutations and 18% KRAS mutations in lung adenocarcinoma patients of Indian ethnicity compared to 10–15% vs. 27–62% EGFR mutations and 25–50% vs. 5–15% KRAS mutations among the Caucasians and East Asians populations [6, 22–24]. Here, KRAS is linked to lung adenocarcinoma.