"what (MNS chief) Raj Thackeray was demanding" is a noun phrase meaning "the thing that (MNS chief) Raj Thackeray was demanding". Similarly, "what the producers guild voluntarily offered" is a noun phrase meaning "the thing that the producers' guild voluntarily offered". The overall sentence pattern, "I do not think that X and Y was something different", is not good English.
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Jigneshbharatithe use of " what" in the first sentencewhat = the thing that