Proof required for claiming additional exemption?

Hi,

My TDS accounted for only 70,000 exemption under section 80(C). While e-filing i want to claim further deduction of 30,000 based on some additional LIC policies that I have taken. This also means a further tax refundable amount of 14,000. 

Can somebody please tell me if I need to submit any documents to claim this additional exemption while efiling (uploading the xml)? Or do I need to send any documents while sending across my acknowledgement?

Thanks,

Sunetra