ntfs - Laptop HDD fail, Shows partition but can not copy data, testdisk MBR code fail

I use 2TB HDD in my laptop with 250 GB partition for windows 10 and rest for data storage. I switched my laptop so moved the HDD from old to new laptop and started the system. Windows logo came up but within a minute laptop crashed and then after nothing worked. I took out the HDD and plugged externally to another windows 10 system where it shows both the partition mounted with their respective sizes. When I open the drive it shows folders as well but when I open or copy any of the folder it gives error "The device is not ready".

I tried using minitool and recuva data recovery but it failed to detect anything.

Then I plugged the HDD externally to Ubuntu system. Gparted shows 3 partitions, 1) ntfs system reserved 549 MiB, 2) ntfs Windows 250 GiB, 3) ntfs 1.57 TiB. But the direct data copy or testdisk fails.

I used testdisk to analyse lost partitions but nothing is reported, even in deep search. I then used the MBR code but even that failed.

I also used gddrescue to copy image the entire disk which ran for ~ 24 hours and made the image file of 800 GB. Following is the output of log:

# Rescue Logfile. Created by GNU ddrescue version 1.19
# Command line: ddrescue /dev/sdb /media/v/Seagate Backup Plus Drive/copy.img /media/v/Seagate Backup Plus Drive/status.log
# Start time:   2018-11-29 12:16:31
# Current time: 2018-11-30 11:33:28
# Copying non-tried blocks... Pass 1 (forwards)
# current_pos  current_status
0xC21A8B0000     ?
#      pos        size  status
0x00000000  0xBF655E0000  +
0xBF655E0000  0x00010000  *
0xBF655F0000  0x00010000  ?
0xBF65600000  0x7F078000  +
0xBFE4678000  0x00008000  *
0xBFE4680000  0x00010000  ?
0xBFE4690000  0xA9DC0000  +
0xC08E450000  0x00010000  *
0xC08E460000  0x00010000  ?
0xC08E470000  0xDDADC000  +
0xC16BF4C000  0x00004000  *
0xC16BF50000  0x00010000  ?
0xC16BF60000  0xAE950000  +
0xC21A8B0000  0x2E166F25E00  ?

I have important data in Data partition so I do not want to take risky steps. So I am now posting this question for help.

Update 20181201
I ran ddrescue and following is the current status.
ddrescue status

Any idea why the recent blocks are full of errors? I see a trend that somewhere in middle many red block are coming? Could it be that the rest of the blocks will follow the same trend henceforth? How do I see which files have been rescued in the green area?

Kindly suggest how to rescue the data on the disk.

Thanks a lot in advance.