Selling T-bills before expiry

I bought some T-bills of 1-year maturity from Zerodha Coin sometime back. Now I wanted to sell them before expiry . Is it possible?
I also noticed in the KITE window that these t-bills hardly have any liquidity. Is this mean they are not traded frequently so I can’t sell them easily?

You can sell the T-Bills before maturity since these are listed on the exchanges. However, as you pointed out the liquidity is very less for these instruments, so it might not be easy to exit.