Travelling to India during H1B Amendment in progress

[iamadmin1]

My H1 was filed for client A which is in Virginia and it got approved for 3 years, recently I have moved to Client B to New jersey with the same employer (he filed the amendment in the month of July 2018 & its been 3 months as of now). I need to travel to india on my personal reasons, but My visa is with past date, So if i travel to India I have to go for stamping.
Now my question is Can I carry my old approved/valid I797 copy along with my new amendment receipt number while going for stamping ? or Do i need to wait till my new amendment gets approved ?
Please help me with some solution here, thanks !!