Help me calculate In-hand

Hi I am novice in finance and taxes. Learning a bit here and there. I have an offer and will be joining this company in next 2 months. Before this I want to evaluate the offer and calculate my in hand salary after tax as per new regime. Also, can I adjust my CTC to cut out on taxes anyhow? Like keeping it below 24 Lakhs or anything like that? Please help me out!!