Transfer shares held in personal demat to private ltd company demat

I have some shares and mutual funds held in my personal demat amount. I have recently opened a firm (private limited). Now I need to transfer all those shares and mutual funds to that firm’s demat account in the most efficient way possible. I am not looking to redeem the Mutual Funds or sell the stocks. I want to do something like an off market transfer.

So what would be the best way to go about this without having to pay tax for this seemingly trivial thing.