how we can implement stacking and made council in local testnet ?
Thanks in Advance,
If you're speaking of Relay chain staking like Polkadot then you will need the staking pallet.
There is a guide on how to use pallet staking here.
If you're looking to have the substrate-node-template be able to stake, then look here:
If you want a council, you can use the collective pallet. You can see how Polkadot configures it here.
You can also see a basic council configuration here.