can we call startActivityForResult from adapter?How to get the response?

Yes, it’s possible. You need a reference for the Context in the adapter and call the activity:

Intent intent = new Intent(context, TargetActivity.class);
((Activity) context).startActivityForResult(intent, REQUEST_FOR_ACTIVITY_CODE);

Beware that context must be an activity context or this code will fail.

You get the result in the enclosing activity using onActivityResult as usual.

So, for example:

In your adapter:

MyAdapter(Context context) {
    mContext = context;
}

public View getView(int position, View convertView, ViewGroup parent) {
    …
    open.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            …
            Activity origin = (Activity)mContext;
            origin.startActivityForResult(new Intent(mContext, SecondActivity.class), requestCode);
        }   
    });
    …
}

public  void onActivityResult(int requestCode, int resultCode, Intent data) {
    Log.d("MyAdapter", "onActivityResult");
}

In your second activity, do as usual with setResult and finish.

In your main activity, capture the result and pass to the adapter callback:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    mAdapter.onActivityResult(requestCode, resultCode, data);
}