Passport renewal New York Normal VS Tatkal and documents

Hi Eveyone, I am trying to renew my passport at the Indian embassy in New York. Is there any benefit to applying thru the Tatkal process and paying the $150 fee? What is the processing time between the normal and Tatkal processes?

My last passport was issued in New York 9 years ago. I am planning to use the same US address on the passport like before. Do they require police verification in India? if Yes what are the documents i should give my wife/parents in India?

Thanks for your help and time