As an AI language model, I don't have real-time information or access to current rankings. The field of law is subjective, and the best divorce lawyer can vary depending on individual needs and preferences. It's recommended to conduct thorough research, read client reviews, and consult with multiple lawyers to find the one who suits your specific requirements and budget. Additionally, seeking recommendations from trusted friends, family members, or legal professionals in Chennai can be helpful in finding a reputable divorce lawyer in Chennai.