Dear R Kumar
According to present situation, it is better for basement parking if rules allow there.
Respected Gupta sir
can you provide me idea about how to construct basement 3 feet below GL existing & 5 feet above GL above existing parking slab.
If you want plan and design than contact with detail of your plot to firstname.lastname@example.org
For know about construction of basement, visit website basement sub section in construction.See the link