To avoid paying exepensive one-way J fares, one of the tricks is to book a return or open jaw ticket, with a throw away return in Y :
In op case :
CDG-DOH-MAA in J on Nov 8 + throw away return in Y DEL-DOH-EVN on Nov 14 = $1639 instead of $2734 for CDG-DOH-MAA one-way in J
COK-DOH-JFK in J on Nov 17 + throw away return in Y MIA-DOH-BOM on Nov 28 = $2605 instead of $2902 for COK-DOH-JFK one-way in J
You can even expect some $$ refunded when you cancel your throw away return (do it after having flown the outbound and before the date of the return flight).