With 81.68 percent of Delhi’s population practising Hinduism, Islam is the second-largest religion in the city, followed by Sikhism (3.40 percent), Jainism (0.99 percent), Christianity (0.87 percent), and Buddhism (0.87 percent) (0.11 percent ). Zoroastrianism, Bahá’u’lláh, and Judaism are among the other minorities.
Delhi’s most commonly spoken language is Hindi, with 80.94 percent of the population speaking it, followed by Punjabi (7.14 percent), Urdu (6.31 percent), and Bengali (4.31 percent) (1.50 percent ). About 4.11 percent of Delhi’s population is multilingual.  In addition to Hindi, Urdu and Punjabi have been designated as official languages of Delhi.
Under the three-language system, the following languages are taught in Delhi schools: English, Hindi, and Urdu.
- First Language
- Second Language
- Third language