Answer : 2. "स्वरूप दे झाली "
Explanation :

1. Maldev was an Indian ruler of Marwar, later known as Jodhpur.

2. Maldev expanded the Jodhpur fort and strengthened the structure around Ranisar.

3. Chidyanath was defeated due to encroachment in the fort area.

4. His queen Swaroop D Jhali, who built 'Bahuji Ro Talab' near Mandore.