1. Pre-filling of ITR is only for the taxpayer's comfort.Taxpayers should confirm the pre-filled information cautiously and add any other taxable income which aren't pre-filled. 
2. The last date for documenting of TDS statement and issue of TDS certificate by Deductor...

In simple words, GST is one indirect tax for the entire country i.e Goods and Service Tax (GST) is an indirect tax levied on the supply of goods and services. This law has replaced many indirect tax laws that previously existed in India.