Pending with AO

Venkat (Others) (41 Points)

09 July 2018  
My ITR processing for AY2016-17 has been transferred to jurisdictional AO in FY2016-17. I have tried reaching the AO but got a reply he got tranferred. it has been 2 years and i didn't receive any communication and my return is still with AO. Could you pls clarify
1. what is the maximum duration AO hold a return without processing or sending any communication?
2. if the return is held by AO beyond stipulated time can i assume the return as processed?
3. how will the refund get issued when the return is assumed as processed as mentioned in point 2?