When I turn on my laptop, I am guessing it works but monitor doesn't. Monitor goes blank/pink screen; Nothing shows at all. So, I thought lets try with external monitor. External LCD monitor shows "Input not supported"
Any help will be appreciated.
The fact that the laptop still runs XP, which is now unsupported and has been for a while, means it's very old.
Given the symptoms you describe and the age of the machine, a hardware failure is near certain. Get a new machine, it's much cheaper than repairing the old one. If you still need your data, remove the drive (you may need to buy the appropriate screwdrivers for $5) and buy or borrow a USB adapter ($10-20) to read from it.