The Avanti Schools Trust, which set up Krishna Avanti Primary school in Leicester, now plans to open a secondary school.
The school, which will be known as Avanti Farm, will take pupils up to the age of 18 and will help to address the projected shortage of secondary places in the city.
Project director Pradip Gajjar said: "The demand for our school has been overwhelming and parents are happy with our provision, driven by our strong spiritual ethos. With the secondary school, we are not only continuing to respond to parental demand but also to the need for secondary places."
The school is expected to open in September 2015.