As part of Home maintenance, I need some electrification work. Looking for some basics of home electrification like
how to connect a fan regulator ....
Your question is too broad to answer in this forum. Electrical work is an exact science with no room for error. Mistakes can cause personal injury, death, or the danger of fire. If you have no background or training I would seriously suggest you hire a pro. If you really want to learn, there are some good books that teach the basics. These books can be found at any home improvement store. A better alternative would be to learn from a pro with some personal instruction and the comfort of knowing a pro has checked your work. I cannot overstate the danger of improperly done electrical work. Be safe and be smart!