If you are looking for a German language course in Delhi that covers the four cases, three genders, and strong and weak verbs, there are several options available. You can search for language schools or institutes that offer German language courses in Delhi, or look for online courses that provide interactive learning experiences.
Some popular language schools in Delhi that offer German courses include the Goethe-Institut, Max Mueller Bhavan, and the Institute of Foreign Languages. These institutes offer courses for beginners, intermediate, and advanced learners, and provide training in all aspects of the German language, including grammar, vocabulary, listening, speaking, and writing.