Got this feeling the motor bike guy looked like a girl more then a guy,SO that could be nobody else other than Laila,as Laila hates Paro to the ccore and could do anything like pouring acid on Paro to get Rudra.I know your question is was she able to drive a motor bike?
Why not never knew she can drive a car until she did?Please dont get upset as this is my 2 cents.
It could be Laila, because I also got the feeling that it is woman on the bike at the end of the promo but at the start the hands looks very masculine so it must be a man. I hope they will bring her back to bring her story to an end đ