Sri Matre Namah,

I have a few queries regarding this-

1. For the uninitiated, which Mantras, Stotras and Namavalis can he use to recite?
2. What would an ideal flow of upasana be using the guide attached with the post for an uninitiated sadhaka? Like with which Mantra should we start and at which stotra/namavali/stuti should I end the upasana for that day?
3. Should I do anything at the end for the deity of the gupt navratri if I follow the upasana?

Thank you in advance! And apologies if the questions are too juvenile, as I am yet to do the Beginner's course, but I really want to take part in the Gupt Navaratri Upasana.

Sri Matre Namaha,

Thank you so much for all the information!

Is there also a section about Karna Matangi available?

Sri Matre Namaha!

Lavkush

Śrī Matre Namaḥ!

Karna Matangi is not covered in that document.

samarthkumar

Śrī Matre Namaḥ!

1. The mantras that can be chanted by the uninitiated are listed on page 4 of the document. All of the other stotras given in the PDF can also be chanted as well.
2. The manual gives you a wide array of options and maximum flexibility to create your own individual sadhana. Given your daily time constraints, you can choose which stotras suit your schedule. If you have more time, you can chant her Sahasranāma and if you don't have a lot of time then you can chant her 16 names, given on page 8.
3. There are no specific instructions for that day. As mentioned in the point above, it's up to you to decide which stotras to chant on that day.