Indigo Airlines — item lost - flight from pune to cochin

Address: 682301

Pnr e7jgxy. Flight from pune to cochin.
My handbaggage was weighing only 5.5 kg but it was forced to be loaded as checkin baggage. Upon receipt, the bag was in opened condition, seal was broken and my book "theory of cookery" which was safely placed in the bag was missing. Front zip also was in opened condition. Highly dissapointed with baggage handling.