Collar Tabs Indian Army : The rank and seniority of Indian Army officers can be identified not only by the batch on the shoulders but also by the tabs on the collar of the uniform. The collar tabs of Indian Army officers are red in colour. The first caller tab is available to an officer of the rank of Colonel. After which, with each promotion, the collar tabs keep changing along with the batch on the shoulders. Let us tell you how to find out their rank and seniority from the collar tab on the uniform of an Indian Army