There are some reasonable restrictions—
buffer zone and no-fly restrictions around airports and certain government facilities, including military and strategic ones.
Drones are also not allowed to fly above the obstacle limitation surfaces of an operational aerodrome—this has been prescribed to avoid interference with the flight plan of airlines.
There are some onerous, but perhaps necessary, training compliance for operators, apart from flight plan compliances.
But, mandating all drones must fly within the visual line of sight of the remote pilot—the US too requires this—placing explicit restrictions on dropping and discharging substances without prior permission, the numerous and complicated police approval requirements, etc, will all prove to be hurdles for efficient commercial application.
The ban on substance discharge without prior permission means that India won’t see the same farm applications drones are being put to in, say, France where fertiliser and pesticide application over cropped area is carried out via drones. Similarly, requiring police clearance for every planned flight 24 hours prior to flight will prove a regulatory headache for delivery services,
if they are eventually allowed—the government needs to create the right ecosystem for drone operations to add to the economy’s automation dividend.