Err no, in fact many ebay sellers clearly say they will not ship to WB and some parts of UP and NE (a few examples) because here waybill is required (and it is the customer's responsibility to get the waybill - ridiculous!)
My guess is you are looking at the wrong problem. Waybill, CST, entry tax - are all anti business and ultimately anti people. If ecommerce websites stopped shipping due to lack of waybill then who is the end loser? The customer. Not the etailer, not the archaic government - but the customer who cannot buy something cheaper and quicker online
If you really want to file a PIL, focus on an uniform tax which should do away with the multitude of VAT, CST etc