Complex sentence: The day is also of great importance at Janakpur in Nepal, where thousands of pilgrims arrive many from India, as it is believed here that Sita was born at Janakpurdham and got married to Bhagavan Sri Ram here.
Split into simpler sentences: The day is also of great importance at Janakpur in Nepal. Thousands of people arrive at this place as it is believed here that Mata Sita was born at Janakpurdham and got married to Bhagavan Sri Ram here.