This is site with line by line translation of the Vedas into Hindi with original sanskrit as well as the translation of all the puranas into Hindi : http://www.vedpuran.com/
They will be glad if you share the link with those who need it.
You can find sanskrit texts ., Vedas, Natya Sastra, Puranas.. what have you in devanagari script here : http://is1.mum.edu/vedicreserve/
Sanskrit documents in the digital library of India hosted by IISc.: http://www.new.dli.ernet.in/
Other links : http://sanskritdocuments.org/doc_purana/doc_purana.html
Feel free to Share: Satya Sarada Kandula
mujhe hindi me janna hai