Hello Ritu Lathwal

I hope you are doing good. I would like to know you that their are various number of entrances exams which you can give graduation. But most of the exams require btech in their eligibilty. Following are the few ways to go in army for you:

1.Short Service Commission Non Technical Women: This exam is conducted under the Combined Defence Service examination. The criteria need to be fulfilled in order to sit in this examination are:The age of the candidate should be between 19-25 years.The candidate should be a graduate from  recongized university

2.  COMBINED DEFENCE SERVICE EXAMINATION

This examination conducted twice in a year by union public service
commission of india.To recruit the candidates in Indian army, air force and indian
navy.Eligibility criteria for the same will be:-graduate in any discipline from a recognised university
for indian army.-graduation in physics maths and engineering for indian air force
and indian navy.Age limits varies according to the different academies for example:
-for Officers training academy 19 to 25 years of age.
-for indian millitary academy 19 to 24 years of age.

3.AFCAT- Air force common admission test.
Examination is conducted for selection into the three branches of
indian air force.
Three branches are-
-flying branch.
-technical branch.
-ground duty branch.

Hope you found this answer helpful. Good luck for your future