Aircel has two tier speeds.
Only the super pro gives above 4-5 (pack speed 7.2 mbps)
other smaller 3G recharges gives average 1 to 2 mbps only ( In orbit downloading around 100-300 KBPs)

Rs 1275 unlimited download (scam) with FUP 5 GB may give average speeds only (max 1 to 1.5mbps at best)
First month free data (3GB) speed as below