even after efile, turbotax asks me to mail form 8949

[shishirpa]

even after efile, turbotax asks me to mail form 8949 along with form 8453. Do i need to do this? 

[JohnB5677]

Yes, form 8953 is telling the IRS that they should attach documents to your tax return.  Form 8949 is for Sale of Capital assets and your form 1099-B should be included.

It sounds like your stock sales were summarized.  That's why the IRS wants a copy.