What is the tax implication for my US long term stock and its dividend after moving back to India? I wish to keep the stocks and its dividend for long term

I have dividend stocks and I will be moving to India next year. I wish to keep the stocks but I am not sure of tax implications of its dividend and sale of stocks in future. DO I have to file tax from India every year for dividend? if so what percentage I am looking? I am not permanent resident in USA. thanks