Yes you can give gentle bath with luke warm water to Ansh. Use a mild puppy shampoo and try making it a enjoyable experience by being gentle, treating him after bath and giving praises.
Professional Grooming ensures thorough cleaning of intricate and difficult to reach areas.
Also, professional groomers use equipments and products specially designed for your pet's coat, breed and comfort. It's recommended to get your pet professionally groomed atleast once a month.