20 Kms from Alibaug on the Alibaug – Roha route near Salav village is the beautiful 'Birla Mandir'. Built atop a hillock Birla mandir has Ganesha as the main diety. The idol of Ganesha is placed on a marble nave which is intricately carved. The idols of ‘Riddhi and Siddhi’ are placed on either sides of the Ganesha idol. There are small temples of ‘Radha-Krishna’, ‘Shiv-Parvati’ and ‘Suryadeva’ also in the Birla mandir. Aarti at the Birla mandir is performed at at 9.00 am and 7.00 pm everyday.