Worth a one time visit. Be aware of commercialism ...

Worth a one time visit. Be aware of commercialism of the temple prayers/offerings, etc. One can visit the temples without paying a single rupee.

The entrance is from left when you are facing the mall. Entrance is a (quite dark) tunnel of ~100m. Rest of the route through temple is well managed/barricaded. They have good system for leaving footwear, don't know about luggage.

Idols are quite magnificent, with plenty of opportunities for selfies!
During non rush hours/days, it should take around 30 mins to complete the visit.

There could be some food outlets in the mall - I haven't checked. Alternatively, after exit from the temple (from the left of the mall), cross the street and go little left to find a decent south Indian restaurant.

The mall seems well connected by public transport, cabs, autos. Indira nagar metro station is the closest one (~2KM). I don't know about car parking availability in mall parking for temple visit.