Heart is the vital organ primarily responsible for delivering the circulation of blood and transportation of oxygen and nutrients, as well as assisting in the removal of metabolic wastes in all parts of the body. An estimated 17.9 million people died from CVDs in 2019, representing 32% of all global deaths. Of these deaths, 85% were due to heart attack and stroke. Basic Life Support is basic medical aid which is offered to people before they reach a hospital or in situations where high-level medical care is not immediately available. Basic cardiac life support knowledge and practices for health care provider is a key element or pillar to decreasing the death rate and increasing survival ratio. Nursing officers are the first person who deals with the patients in hospital. So, Nursing officers need a good knowledge of cardiopulmonary resuscitation. The aim of the study was to assess the attitude regarding Basic life Support among nursing officers. Quantitative research approach was used with pre-experimental one group pre-test post-test design. Study population was nursing officers. Non- Probability Convenient sampling technique was used to select the sample. Sample size was 70 nursing officers. Mean Post-test attitude score 78.80 was significantly higher than the mean pre-test attitude score 65.70 as evident by t-test 23.704 (P value-0.001*) at 0.05 level of significance among nursing officers. It showed that an informational booklet was effective in increasing knowledge of the nursing officers. The study finding revealed that an informational booklet was highly effective to change the attitude regarding basic life support among nursing officers.