Officiating Appointments are allowed in PSU's? If yes how the pay is fixed after appointment?

1. Officiating Appointments are allowed in PSU's? If yes how the pay is fixed after appointment?

If given, can it be withdrawn later? If withdrawn, how the pay us governed after withdrawal of officiating appointment?
23rd February 2023 From India, Delhi

Officiating appointments are allowed in PSUs. The attachments may support you on the subject.
24th February 2023 From India, Kannur

Attached Files (Download Requires Membership)

Parshotam_Lal_Dhingra_vs_Union_Of_India_on_1_November_1957.PDF (274.8 KB, 6 views)

Consolidated FR_49r3GDi.pdf (133.8 KB, 10 views)