Yes, it will open tomorrow. But tomorrow, you will be able to book from NDLS and Mathura only as from the subsequent stations, the date will change to 3rd (more than 2 days in advance) and hence booking will not be taken at IRCTC (book it from Mathura than). If you can take a risk, wait till next day and book.
For a detailed discussion on this, please refer to entry # 229467.