Unhappy [Q] HTC ONE 802D HELP PLZZ!!:crying:

I have a HTC One 802d (m7c_dwg) indian dual sim version..
I have messed it up pretty much.

I am new to XDA forum. Maybe I am not able to search well.

However, when my phone was working perfectly fine and stock it was:
version: 0.5
version-bootloader: 2.27.0000
version-baseband: 1.01.32.0917
version-cpld: None
version-microp: None
version-main: 2.23.720.2
version-misc: PVT SHIP S-ON
product: m7cdwg
platform: HBOOT-8064
modelid: PN0751000
cidnum: HTC__038
partition-layout: Generic
security: on
build-mode: SHIP
hbootpreupdate: 11
gencheckpt: 0

After this I have made a terrible mistake.
I went S-OFF and flashed this RUU. The onl;y RUU.exe i could find.
ruu_m7c_dwg_jb_50_htccn_chs_ct_1.12.1401.1_radio_1 237.17.18.0423release_signed

This has changed my hboot, software no., radio everything and i am not able to get any signal on my phone.
After this i upgraded the firmware to
OTA_M7C_DWG_JB_50_S1_HTCCN_CHS_CT_2.40.1401.1-2.36.1401.1_release_339188zxf4sldwhr7k7cw8

MY condition now is:

(bootloader) version: 0.5
(bootloader) version-bootloader: 2.27.0000
(bootloader) version-baseband: 2.03.30.1025
(bootloader) version-cpld: None
(bootloader) version-microp: None
(bootloader) version-main: 2.40.1401.1
(bootloader) version-misc: PVT SHIP S-OFF
(bootloader) serialno: HT382MP00013
(bootloader) imei: 357607050351635
(bootloader) meid: A1000037A614ED
(bootloader) product: m7cdwg
(bootloader) platform: HBOOT-8064
(bootloader) modelid: PN0751000
(bootloader) cidnum: HTC__038
(bootloader) battery-status: good
(bootloader) battery-voltage: 4120mV
(bootloader) partition-layout: Generic
(bootloader) security: off
(bootloader) build-mode: SHIP
(bootloader) boot-mode: FASTBOOT
(bootloader) commitno-bootloader: dirty-b78ee36f
(bootloader) hbootpreupdate: 11
(bootloader) gencheckpt: 0

Still of no help. I am not getting any signal even now. Whenever i try to get back to stock via installing Nandroid backup i created when it was stock. It flashes well.
But as soon as it boots. It reboots after few seconds and keeps rebooting like that.

I dont know now what to do. I have tried flashing soul ROMs, still the same issue.
It boots up but i dont see anything on the screen, just the battery icon and no signal. it again reboots.

PLEASE HELP ME WITH THIS. I DONT KNOW WHAT TO DO NOW.
If you can post HTC One 802d indian official firmware package, it will be of great great help.!
Also, Please tell me how i can get back to S-ON as i will have to visit service center, i suppose.

Please Help!!
(I am sort of a noob, please don't mind if i sound dumb)

THANK YOU FOR YOUR HELP IN ADVANCE.