It is generally known that Śrīmad-Bhāgavatam is a natural commentary on Brahma-Sūtras, but no book has been written before that would show which Bhāgavatam verse corresponds with which sūtra. By authoring Vedānta-Darśana, Śrī Haridās Śāstrī Mahārājjī is the first Gauḍīya Vaiṣṇava scholar to have undertaken this enormous task.
In the process he made use of Bhāvārtha-Dīpikā, Six Sandarbhas, Bṛhat-Krama-Sandarbha, Laghu-Krama-Sandarbha, Bṛhad-Vaiṣṇava-Toṣaṇī, Saṁkṣepa-Vaiṣṇava-Toṣaṇī, Sārārtha-Darśinī, Caitanya-Mata-Mañjuṣā, Siddhānta-Ratna, Prameya-Ratnāvalī, Vedānta-Syamantaka, Govinda-Bhāṣya, Sarva-Samvādinī and others.
The book contains Preface, Śruti-Saṁgraha (listing all śruti statements found in Śrīdhara Svāmī’s Bhāvārtha-Dīpikā), Brahma-Sūtrādhikaraṇa-Mālikā (index of topics found in Brahma-Sūtra), and the text itself, which starts with Brahma-Sūtra 1.1.1 and its corresponding Śrīmad-Bhāgavatam verses 1.2.7-11 and part of 1.1.1; the verses are also translated into Hindi, and many of them are commented on as well.
For a summary of the Preface and some translated passages, please go to the forum.