I think the approval part is made up. This program has been going since 2016-2017. The missiles are now under fabrication and the firing is emminent.What approval do you need to start development?
Now we can say the IN is calling their LRSAM as MRSAM.
@marich01 the LRSAM-IAC is nothing but the vanilla MRSAM for INS Vikrant. Till 2021, MRSAM was known as LRSAM in the IN that is why you will see all the docs mentioning it as LRSAM-IAC.