Adding gears to my single speed cycle without any prior knowledge in bike tech, it was quite an experience.
Here are all the parts,
These were ordered from https://bumsonthesaddle.com
1) TZ500 Shimano 6 Speed Freewheel
2) KMC 6 Speed Chain
3)Shimano TZ50 Derailleur
https://www.amazon.in/dp/B003EQ71R2/ref=cm_sw_em_r_mt_dp_1qODFbZV3DCR2
4) Starlit Vortex 6 Speed Index Shifter
https://www.amazon.in/dp/B07HKG65WG/ref=cm_sw_em_r_mt_dp_IrODFbAANG7JK
All the YouTube Channels which helped with the build.
1)Seth's Bike Hacks
https://www.youtube.com/c/sethsbikehacks
2) Park Tool
https://www.youtube.com/user/parktoolcompany
3)GCN & GCN Tech
https://www.youtube.com/user/globalcyclingnetwork
4) RJ The Bike Guy
https://www.youtube.com/user/shyflirt1
5) Eric Bujis - Solvespace Tutorials
https://www.youtube.com/channel/UCPwwPIXHMZYcVyJ2SuRJjuA
Solvespace Links
http://solvespace.com/index.pl
Solvespace Tutorials
https://www.youtube.com/watch?v=1Em_XESnqUM&list=PLEvJVXu3VfGMSOdpA0jrGRzoM7NlNOl5s
Freecad Links
Music Credits
https://youtube.com/vexento
https://www.freecadweb.org/