The Gurmukhi script, in which the Sikh scriptures are written, was standardised and popularised by:

The Gurmukhi script, in which the Sikh scriptures and the Punjabi language are written, was standardised and popularised by Guru Angad Dev, the second Sikh Guru.

About the Gurmukhi script:

• "Gurmukhi" means "from the mouth of the Guru".
• It developed from earlier scripts used in Punjab, such as "Landa" (a mercantile script) and "Sharada".
• Guru Angad Dev improved and standardised it, so that the hymns of Guru Nanak could be written down accurately and read by ordinary people.
• It has 35 basic letters (with additional letters added later).
• It is written from left to right.
• It is the official script for Punjabi in the Indian state of Punjab.
• In Pakistan, Punjabi is written in the Shahmukhi script (a form of the Perso-Arabic script).

About Guru Angad Dev:

• He was born in 1504, and his original name was Lehna.
• He was a devoted follower of Guru Nanak, who chose him as his successor in preference to his own sons, and renamed him "Angad" (part of the body).
• He became the second Guru in 1539.
• He lived at Khadur Sahib (near Amritsar).
• He collected the hymns of Guru Nanak and wrote them in Gurmukhi.
• He encouraged physical fitness, and set up wrestling arenas (akharas).
• He strengthened the institution of the "langar" (community kitchen), which served free food to all, regardless of caste or religion.
• He also compiled an account of Guru Nanak's life, according to tradition.
• He died in 1552, and his disciple Amar Das became the third Guru.

The Sikh Gurus (in order):

Guru Nanak Dev, Guru Angad Dev, Guru Amar Das, Guru Ram Das, Guru Arjan Dev, Guru Hargobind, Guru Har Rai, Guru Har Krishan, Guru Tegh Bahadur and Guru Gobind Singh.

Why not the other options?

• ✗Guru Nanak Dev founded Sikhism.
• ✗Guru Arjan Dev compiled the Sikh scripture.
• ✗Guru Amar Das set up the manji system and promoted the langar.