Dear Basu, for starters you need to have a minimum of 16 years of formal education. You need to be an undergraduate to be eligible for Master's in Communication and Journalism. The Bachelor degree needn't necessarily be in the same stream. You need to appear for either GRE or TOEFL for English Proficiency. You also need to be ready with a Statement of Purpose. You need to figure out which Universities you want to apply for and check their eligibility criteria separately because every University has its own criteria. Most admissions start in September so you need to prepare atleast a year before.