Traveling from Varanasi to Mahakumbh between 23-28 Jan

I'm traveling with family from Hyderabad and was advised to go to Mahakumbh from Varanasi rather than staying in Prayagraj given the crowd (which made sense to me).

Is train travel to Prayagraj safe idea? Or should I go with private cab

will there be any restrictions on vehicle movement from outside the city between 23-28 Jan (will confirm the dates soon) if I take cab?

Plus share your thoughts on what extra care to be taken as there will be ladies along too