Interest on nre fds (not rfc) for a person who is RNOR & others

Hello, Interest on NRE FDs (Rupee) taxable for RNOR? please tell wrt FEMA & IT 2. Interest on NRE FDs (Rupee) taxable for Resident? please tell wrt FEMA and IT 3. Have multiple residential properties. 1 property was vacant for around 8-9 months and thereafter sold. Will tax be payable on "deemed income" basis for those 8-9 months? 4. My FY16 return not filed yet. If I file now and if I see a possibility of a refund, can i file a revised return to claim refund? 5. Spouse is a homemaker with zero income. Had invested FDs in her name when i was overseas. Any legal way to circumvent clubbing of income provisions? 6. Does sampling of ITR take place at local offices or at some centralised place like Delhi or at regional hubs? Does the probability of ITR being picked for scrutiny depends on size of local tax office like Delhi or Mysore? 7. PPF withdrawals taxable? 8. Travel and stay expenses incurred exclusively for sale of property deductible expense? 9. House rent expense deductible for assesses with house property income? 10. 80-G limit of Rs 50k is for total of all eligible donations or wrt each beneficiary? 11. I have high value transactions in FY16 due to switch from Regular Plans to Direct Plans in mutual funds. Will this alone auto-trigger a query / scrutiny of ITR? Thanks!