1 Chennai metro rail.website.--- you get information that all trains are running late as usual.
You can also get alter/tamper with details of many ongoing projects. Can have huge financial impacts.
2 BSNL- you get message " the subscriber you are trying to reach is not reachable as always.
Same as above.
3. Indian meteorological department- There is 50% chance of a rain and 50 % chance of a dry weather.. for more toss a coin.
You can alter/tamper with seismic data, as well as other information. Can result in huge natural disasters, without adequate measures being taken for them.