Hello Aspirant,

Girls cannot join army just after 10th class. There is no pre graduation entry for girls in indian armed forces.

Girls can join army for sure but only after they've completed their Bachelors degree in any stream . Then give the CDS OTA exam, since girls are only allowed in OTA( Officers training academy) . Once you clear the exam, you'll get a call for SSB. SSB will include group discussions, personal interviews and many more methods of selection. Once you clear SSB, then there will be a medical check and only after you clear the Medical they will announce a final list for the candidates selected for OTA .

Check this link for more information:

https://competition.careers360.com/articles/cds-full-form

For detailed eligibility criteria check this link:
https://competition.careers360.com/articles/cds-eligibility-criteria

Detailed syllabus:
https://competition.careers360.com/articles/cds-syllabus

Note: since girls are only allowed in OTA, the exam for OTA doesn't have a section for mathematics. There are only 2 sections for OTA i.e., general awareness and english.

Hope this helps you!
All the best!