Grammarly AI is the most popular AI-powered writing assistant that helps users improve grammar, spelling, tone, clarity, and style in real time. This essential best AI writing and grammar tool India 2026 works across browsers, documents, and apps, making it indispensable for students, professionals, and businesses. It also offers generative AI features for rewriting sentences and generating content ideas. Indian users rely on it daily to produce error-free, professional, and engaging written communication.