Need suggestion for Monitor, Wireless Router and AIO Printer

Please suggest me the following

1. LCD Monitor (budget 6000 - 7500)
Size : 17', 18.5' and 19' (larger size also ok)
Brands: Samsung, LG, Acer, and AOC (is this brand good)
Usage: net browsing and Office application

2. Print, copy and Scan - AIO Inkjet MFD Printer (budget 3500 - 4500)
Brands: HP, Epson
Requirement: Long life print cartridge, good quality prints, good quality scans, Low cost of cartridge

3. Wireless Router (Budget 2000 - 3000)
Brands: Dlink, Linksys
Requirement: 3 PC configuration, ADSL modem option, W LAN, Hardware security