Can I earn through online Ad posting ?

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Hi Friends, I belong to India.I want to know that can i earn through Ad posting work ? If you have any legit Ad posting work providing company please send me the list or names of the companies. please send me only legit companies and free to join I am Indian so, please send me they accept all countries or accept Indians. Please help me to getting some Ad posting work providing company. Awaiting for favourable responses