Evidence to support that claim? Statistics in terms of revenue generated, market share etc.
Pakistani army's '$20bn' business - Pakistan Power and politics - Al Jazeera English
Pakistan army is deep into business | Marketplace.org
Book shines light on Pakistan military's '£10bn empire' | World news | The Guardian
Armed, dangerous and building their own empires - Business - NZ Herald News
BBC - Pakistan army runs 55 Businesses!!!!! > (just read Pakistani poster comments about PA on this forum. Shocking)
Mr Iqbal told the Senate in a written reply that these businesses included fertilizer and sugar factories. The army also has business interests in the energy and banking sectors, and in leasing, insurance, travel, pharmacies, gas stations, security and textiles, among others.
Seems like even Tata does not have business interests in so many diversified fields. Maybe no group in the world.
The below is from a Pakistani poster on a blog word by word (I admit the below is not a link. but wow if true):
"
GOne are the days when we wud be proud of our army
and the armymen itself used to take pride in their profession but now they r more interested in their retirement benifits thts why pak army today
owns
1)- Biggest group of consumer goods industries belonging to Fauji foundation
2)- A major chunk of banking sector in the name of Askari banks
3)- Has the greatest bites in technical education and has established universities like NUST, Air university, Bahria university for engineering students
Army medical college & Fauji medical college
NUML for management sciences
4)- Army is the biggest land lord of pakistan which has its own farm lands in every division of Pakistan whr agriculture is practiced
"