is ies suitable for girls after doing civil engineering(btech)
If you have limited yourself to being a girl then it can be a problem to you. If you are interested in the field, if you want to work as an IES officer then you have nothing to worry about being a girl. I don't understand why there will be problems. There are IAS, IPS Female officers who are doing great in there professions. There are numerous IES officer who have become the advisors to the central Government so you should not worry about being a girl.
We all are full of potentials, only thing is we don't execute or channelize the potential in a correct way.
To know more about IES visit the link below:
https://competition.careers360.com/articles/upsc-ese
I hope this answer helps. All the very best for your future endeavors!