Dear Friend,
It is very difficult to accommodate timings as per requirement of the staff as some women employees have security concern, some may have family concerns, male employees may have different concerns every situation is difficult to manage.
IT companies are registered under Shops & Establishments Act ( popularly known as Shop Act) of each state. This Act provides for the timings and security for women employees. In some states the end time is 08.00 pm, in some states it is 08.30 pm and in some states it is 09.00 pm, if a female employee is working beyond these timings, the employer is legally bound to provide home drop transport with security.
As per your post your timing is up to 07.00 pm, hence they are correctly refusing, if they are not willing to accommodate you then you have to take a call. Alternately you can inform the Management in writing with record that there are security concerns to be on the safe side.
Warm Regards
Bharat Gera
HR Consultant
9322404765