Merge L1 and L2 VISA Appointment INDIA

Hello All, My L1 VISA is scheduled on 9th and 11th and L2 is scheduled on 16th and 17th in INDIA as I did a mistake by creating an individual applicant. Now, is there a way I can make it as single/merge appointment on either of those dates. Please let me know the process.

Thanks,
Shashi