Chichewa is a Bantu language spoken in parts of Malawi, where it is an official national language along with English, and also in Zambia, Mozambique, where the language is known as Chinyanja, and Zimbabwe. Between 7 and 8 million people speak Chichewa.
The orthography of Chichewa was standardised in 1973 when the New Chichewa Orthography Rules were published.
source
wikipedia.org, omniglot.com & ethnologue.comyounger brothers