The memoir, called Why Not Me?, will be the follow-up to her previous bestseller Is Everyone Hanging Out Without Me? (and Other Concerns).
Kaling told the LA Times: "So much has happened between the time I published my first book and now. The show; my mother passed away; so many of my friends have gotten married. I'm a godmother now, and a homeowner.
"There's so much that has happened in that period of time that I wanted to write another book."
The Mindy Project star also said that she loves writing and the way she can communicate to her readers.
She added: "I can only fit so much into the show and have all this extra stuff and I love writing in that format. It's very different from writing dialog.
"[I can answer questions] about the writers' room, or race on the show - my Elle cover, body image stuff that people have questions about. I can actually finally say, in the most eloquent way, what my feelings were about it."
At the beginning of 2014, Kaling spoke at a SXSW panel admitting that being an Indian American woman hasn't paved the easiest road to her success. "I can't think about my legacy because it stops me from being productive — it's a distraction. I don't want to stop being who I am, but I can't rely on it," she said. She remembered back when she was early on in her comedy career, "people wouldn't think you're funny because of the way you look." She added, "You can get hung up and say [you're] the victim, or you can be in charge of the situation."