Lalbagh botanical garden we have mainly choosen for the friends meet up as we can spend time from morning to evening without any disturbance and by enjoying the nature beauty. entry fee is just 20 rupees and worth to spend whole day inside the garden. Flower show was conducted the time we visited there and it was just mind blowing experiance.
the best time to visit here is November to march because other time you may feel hot as we need to spend time in open area eventhough we can get the shadow under tree. I suggest this is the best place to explore with family too.
There are frequent buses to reach the lalbagh.