The Mata Itik Plant above is leaning because the stem cannot hold the weight of the leaves and buds. I realised that if nothing is done, the plant might get uprooted.
Luckily the college janitors were around and they helped me to straighten the plant by staking. They planted a stake a few feet away from the plant Then tied a raffia string around the stem of the plant and pulled it towards the stake to straighten. Hopefully that works.