Intangible assets (Tables)

12 Months Ended

Mar. 31, 2016

Intangible assets

Schedule of intangible assets

	As of March 31,
	2015			2016
	(in millions of RMB)
Non-compete agreements		3,630			4,284
Developed technology and patents		3,331			3,652
Trade names, trademarks and domain names		2,007			2,222
User base and customer relationships		855			1,234
Licenses and copyrights and others		295			787
Less: accumulated amortization and impairment		(3,543	)		(6,809	)
Net book value		6,575			5,370

Schedule of estimated future aggregate amortization expenses

	Amounts
	(in millions of RMB)
For the year ending March 31,
2017		3,103
2018		1,734
2019		449
2020		71
2021		8
Thereafter		5
		5,370