Hi Akhilesh! It sounds like you might be starting to prepare for a visit to the Most Magical Place on Earth!
There are two categories for Guest tickets. The first category is for Guests ages 3 to 9 years old. The second category is for Guests ages 10+. Little Mouseketeers who are two and under do not need a theme park ticket for any of the Disney Parks!
With a little one coming along to experience the magic, you might like to know that the Disney Parks make visits with little ones very convenient for parents!
Rider switch is available for Guests with little ones. With rider switch, one adult can wait in line to experience an attraction while the other adult remains with the child. After the adult who initially waited in line has experienced the attraction, the other adult who waited with the child can experience the attraction without needing to wait in line.
Also, the Disney Parks offer
Baby Care Centers where parents and little ones can take a break! Here you will find changing stations, private nursing stations, a kitchen with a sink, microwave, and high chairs for feeding. There is even a store available to purchase any childcare items you might need to take care of the littlest members of your family! You can find Baby Care Centers in all four of the Disney Parks!
Dreams do come true!
Jonathan