With reference to Centre-State relations on matters enumerated in the Concurrent List, consider the following statements:
1. In case of any dispute in jurisdiction of subjects, Concurrent List takes precedence over both the State List and the Union list.
2. Generally, the state government executes laws on Concurrent subject even if enacted by the Centre.
3. The President can legislate on subjects in concurrent list, only if authorised by both houses of Parliament.
How many of the above given statements are correct?