Context: Interventional pulmonology is on an exponential rise, both in utility and popularity among respiratory physicians worldwide. It has a very wide scope and encompasses a plethora of diagnostic and therapeutic procedures. EBUS (Endobronchial Ultrasonography) is one such procedure, which enables visualization and sampling of mediastinal lymph nodes. We assess the improvement in skill of a trainee as he gathers his experience and thus, tries to get an idea of the learning curve for EBUS. Aims: to study the improvement in skill of an operator doing EBUS which is evaluated upon various pre-set parameters Methods and Material: 60 consecutive patients were equally divided into two groups-A and B, the f comprising of the first and last 30 patients respectively. The data of both the groups were recorded based on pre-determined parameters and compared between both the groups. Results: The average no. of lymph nodes sampled in group A was 1.53/patient as compared to 1.40/patient in group B. The average no. of passes/punctures made was 3.9/patient in group A and 3.13/patient in group B. 56.5% Punctures were representative in group A while it was 94% in 2nd group. The final diagnostic yield was 100% and 93.3% in group A and group B respectively. The average procedure time, CUSUM score, was 30 minutes and 25 minutes in group A and group B respectively. Conclusions: The CUSUM score, which is the average duration of the whole procedure decreased significantly in group B when compared to group A, indicating that every aspect of the procedure right from the entry of the scope till it was taken out from the patient, improved with time, reflecting upon the gained experience and expertise of the operator.