Muhammad bin Fīrūz As regent (AH 789–790; 1387–1388 AD), as Sultan (AH 792–795; 1390–1392/3 AD)

 As Firoz Shah Tughlaq got older, he became further dependent on others. He made his son, Muhammad, a regent on 1375 CE and allowed him to issue coins on both his name, like is elder son (by that time deceased) Fath Khan. However he was not formally nominated. Prime Minister Khan-i-Jahan II poisoned the Sultan’s ears against his son Muhammad with the calumny that the prince was hand in glove with the nobles in an effort to seize power. Then Sultan was at first inclined to believe Khan-i-Jahan II and had even allowed him to punish the prince’s supporters. But prince Muhammad Khan convinced his father that the prime minister was trying to destroy the ruling family so that his way to the throne could be cleared. The Khan-i-Jahan II, had  sensed that the prince had gained the upper hand, and fearing for his life, fled to Mewat.

In 1387 Muhammad Khan was declared the heir apparent. It was not long before he got Khan-i-Jahan II assassinated and took over the powers of the state. But he now took to a life of ease and pleasure. The nobles tried to stop him but when he declined, they  rose up in rebellion and marched out to battle, taking the Sultan along with them. Muhammad could not face the Sultan Firoz Shah Tughlaq and fled from the battle. 

When Firoz died the next year, the succession went to the son of Fath Khan, Ghiyath-ud-din Tughluq Shah II due to a slave revolt. Muhammad took shelter in the fort of Nagarkot. Later in the war of succession, Tughlaq Shah and his successor, Abu Bakr Shah (nephew of Muhammad) was disposed and Muhammad became the sultan finally, reigning from 1390 to 1394 CE

Muhammad issued coins in two distinct phases, when he was a regent to Firoz Shah and when he finally became sultan.

Coins issued during regency period of Muhammad

BI Jital of 80 Rati issued during the regency of Muhammad

This Billon coin was issued ,when Muhammad was a regent to Firuz Shah, have a date 790.

Obv: Sultani firuz shah muhammad shah

Rev: Al-khalifa abu 'abd allah khulidat khilafatuhu 790 (AH)

Ref: D523

Wt : 8.77 gm

Dia: 17.7 mm

Copper falus of 40 rati issued during the regency of Muhammad

Obv: Firuz shah sultani

Rev: Muhammad shah Sultani

Ref: D527

Wt : 4.36 gm

Dia: 13.9 mm

Coins issued during sultanate period of Muhammad

Billion Five-sixth Tanka during sultani period of Muhammad in name of caliph Abu Abd Allah

Obv: muhammad shah firoz shah sultani 

Rev: al-khilafa abu abd allah khuldat khilafatuhu 794.

Ref: D588

Wt : 9.0 gm

Dia:17.3 mm

Overlay added

This is a variation of the above coin but not documented in Goron and Goenka

Billion Five-sixth Tanka during sultani period of Muhammad in name of caliph Abu Abd Allah

Obv: muhammad shah firoz shah sultan, ( instead of sultani)  without the Ye below sultan

Rev: al-khilafa abu abd allah khuldat khilafatuhu 794.

Ref: D588Var

Wt : 8.8 g,

Dia: 17.1 mm

Copper Double Falus during sultani period of Muhammad

Obv: In circle :Muhammad Shah; Around: Sultan dariba bi hadrat Dehli

Rev: naib amir al-mu minin

Ref: D595

Wt : 8.53 gm

Dia: 13 mm

Copper Falus of 40 Rati during sultani period of Muhammad

Obv: Muhammad Shah Sultan

Rev: Dar al-mulk Dehli

Ref: D596

Wt : 4.30 gm 

Copper Falus of 40 Rati during sultani period of Muhammad

Obv: Muhammad Shah Sultan

Rev: Dar al-mulk Dehli

Ref: D597

Wt : 4.30 gm 

Copper 1/2 Falus of 20 Rati during sultani period of Muhammad

Wt :2.06 gm

Dia: 10.8 mm

Obv: Muhammad Shah

Rev: Bi hadrat Dehli

Ref: D600