 रामलक्ष्मणयोश्चैव विवासा द्वासवोपमम्।आविवेशोपसर्गस्तं तम स्सूर्यमिवासुरम्।। 
 Indralike Dasaratha due to banishment of Rama and Lakshmana, was besieged by a great calamity like the Sun enveloped by demonic dark at the time of eclipse.  