Below are the steps which I performed.
Create a draft envelope.
Update Signer 1 details.
Update title tab value using tabId.
Change the status of envelope to sent.
Create embedded url for Signer 1 (Signer 1 is able to his own title and Signer 2 title).
Once Signer 1 complete signing, Signer 2 receives mail.
Signer 2 open docusign envelope.(He can see his own title but not Signer 1 title).
What would be the issue that Signer 1 title is getting blank in step 7?