What are the best activities for toddlers during the lockdown period?

Home is the primary and immediate area of socialization. So it is important for us to make the home an interesting and fun place and a very compatible and friendly environment to promote and maintain healthy relationships between all the members and most importantly.
All of us due to the technological advancements, are mostly into our mobile phones. We can use games and apps on our phones to keep them engaged in the process of learning.
We can also do some healthy family bonding activities so that they enjoy some quality time with the family and learn from it at the same time.
One of the best way is by playing group games. Board games like Ludo, snakes and ladders and chess. These games help maintaining solidarity and friendliness amongst the family members and could cater to increase the thought processes and iq level of children. Playing dumb charades , antakshari, singing , dancing and organizing small quizzes among the members helps in building the kid's morale and through quiz, his general knowledge increases.
You can binge watch family movies, comedy movies, historical and informative movies so that everyone will enjoy and kids will learn out of it.
Games like monopoly etc might help to provide some quality time. Games like crosswords, scrabble will help increase their vocabulary and knowledge.

Reading them stories and books will increase their literary skills, and their knowledge of books. 

All these activites, including organzing quizzes from their academic books will help increase their brainpower and develop them better.