Kartikeya .. Mangal Kumar planet. Kumar = ('Ku' + 'Mar'). Koo = ugly Mar = Beauty Kumar, meaning that the insolent (That is, the beauty of Kundarparkanti beauty also denominates the beauty of it). Our misconception is that the meaning of the word kumar is unmarried. Commander of God Kartikeya is called Kumar .Because Kartikei is so beautiful & attractive that the beauty of Kamdeva ( who is famous for his beauty) shows ugly to the beauty of Kartik. Kartik married Shasti .According to Skandpuran, Goddess Sasthi is the daughter of Brahma .Therefore, worshiping Kartik is in vogue in desire of having child. According to the South Indian mythology Kartik's other wife is Bally. So Kartik is not single.