Shatrughn is on the way to Mathura,it is a long journey so he decides to take rest in the valmiki ashram.He wents there .Valmiki greets him.He meets Sita and touches her feet.Sita asks about everyone in Ayodhya though she felt sorry.Shatrughn says-without you,there is no day or no night,our life seems to move without any breath in it,,
Sita cooks food for him.Shatrughn feels happy eating food made by his bhabhi after so many days.They talked late night then went to their beds.
It is the auspicious day of shravan purnima.In late night,Sita started getting labor pain.Valmiki’s wife runs to gather ladies and tells her husband about this.Shatrughn also gets worried.
In some tv shows,it is shown that Vishnu visits Sita just before delivery.The ladies gather.At the most auspicious time when sun,moon and other are in their perfect position,Sita gave birth to a handsome,cute and glowing face son.Within few minutes,she gave birth to another son who was equally attractive.Everyone is delighted.
Shatrughn enters,says-bhabhi,you have given birth to the royal successors and bright future of Ayodhya.He blesses the kids,says-surely,they will beat us in warfare.
Next day,Shatrughn asks for leave and blessings.Sita says-you are going to serve your elder brothers,no danger can harm you,return victorious.He touches her feet,rishi’s feet and kisses the kids.He leaves.
Shatrughn is waiting for Lavanasur at the gates of Mathura.When he comes,he challanges him for fight.A huge fight starts.Finally Shatrughn kills Lavanasur with that special weapon given by Ram and ends his terror.
Shatrughn returns Ayodhya victorious.Everyone is overjoyed.Ram and other hug her and praise her.Next day,Ram says-i want you to rule Mathura.Shatrughn hesitates,says-brother i never served you to became a ruler,but as a duty of younger brother,i just want to live in your shelter,protecting you all as always.
Ram says-Shatrughn,you should accept the throne as only you can bring peace and harmony in Mathura.Everyone agrees.Shatrughn is crowned the king of Mathura.Celebrations begin.
Later,in auspicious time,the 3 sisters- Mandavi,Urmila,Shrutakirti gave birth to 2 sons each respectively.
sorry,i am not quite sure whether kids of all 4 sisters were twins or not or whether lav kush are twins and 8 kids are born around same time.
Valmiki names sons of Ram and Sita-Lav-Kush
Vashishth names other sons.
Sons of Bharat-Mandavi- Taksh-Pushkal
Sons of Lakshman-Urmila- Angad-Chandraketu
Sons of Shatrughn-Shrutakirti- Shatrughati-Subahu
3 months later
Bhardavi are playing with the kids.Bharat says-being a parent is really a great feeling,first we were single,then became two and now four.Mandavi says-but most of the time you are out so i hv to handle the kids.He says-sorry,but today we will spend time,so now my princess bring a smile on your face.She smiles.They hug.
Urmila says-you are most of the time so i hv to handle the kids.Lakshman says-see,how smartly i will handle the kids.He takes one,other cries,take another the another cries.He gets tensed.She smiles but they finally hugged each other.
Shrutakirti is in Mathura.Shat-Kirti are making kids for sleep.She said-we hv came far away from our family,i want to meet them.He says-but we hv to wait until ram bhaiya allows.She agrees.They hug.
Ram is feeling loneliness of Sita and kids and blames him for his condition.Sita thinks-whether the kids would be able to meet their father.He kisses the kids.