Thanks for your question on Healthcare Magic. I can understand your concern. You are having old healed scarred lesions in current chest x ray.. And these lesions are due to previous tuberculosis. Actually, almost all lung infections heal by fibrosis and calcification. And this fibrosis will remain as it is through out the life. And this will show on chest x ray as scar lesions. Since these are non infectious, inactive lesions, no treatment is required for them. For your visa purpose, you should consult pulmonologist and get done CT thorax and bronchoscopy with BAL (bronchoalveolar lavage) analysis. If both of them are negative fir tuberculosis or other lung infections then you can argue with visa authority for your work visa. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks.