The entire tourism in Chilika is managed by various syndicates and it depends on the allegiance of your driver on where you end up. I'm pretty much sure you do not ever end up at the OTDC Center or the Chilika Visitor Center, unless you are really lucky.
These syndicates, or the boat-tour organizers (as they like to call themselves) have their own set of men, roaming around in bikes and stopping your cars 10-15 minutes before you even reach Chilika, negotiate a deal and take you to their office, but we weren't stopped by any since our driver was a regular there, and knew where to go to earn his commissions!
15 minutes through the meandering roads and we reached a stand where there were 4-5 food stalls having chips, biscuits and fresh coconut water and an Office (as they claimed it). The Office handed us over a "Rate Card" for boat rides with the following tariff:
6 Individual attractions (Crab Island, Kalijai Island, Dolphin sighting etc. at 1800-2500 INR each) or the entire package for 4200 INR!
No duration for the rides or any other information mentioned in the card. When you ask at the office why is the charges so high, they'll tell you to pay 100 INR less, as if that solves everything.
There were 10-12 boats lined up, covered and can seat 8-10 people at once. But they insisted only people from one family can ride in a single boat and you cannot share with any other families even if you wanted, in order to split the cost.
So we decided not to go for a boat-ride at such high tariffs, and trust me, it was the best decision made. Families who were returning after their rides said they could never spot any dolphins (which is their main selling point) and the entire ride itself took only 2-2.5 hours! What a save it was. We took a stroll around the lake for an hour or so and decided to leave. Our driver however wasn't ready to give up on his commission and miraculously arranged for a boatman by himself who would take us on the entire trip for 2500 INR only! But it was already 3pm and too hot to even ride the boat for an hour. Also, there was no point trusting them because the chances of being duped were really high, seeing the entire scenario that's prevailing there. So we rejected his offer, had some fresh coconut water for 20-25 bucks each, which were surprisingly cheap and edible and then headed back for Puri.
On our way back, the driver expressed his sadness by saying we should tip him 200 bucks at least because he doesn't get paid well but I denied that. Don't get me wrong here for not helping a poor man, but the Travels had already told me that it was his car and to pay him the 1500 INR for the ride directly, so there's no way he was poor! This was just his last attempt to extract some more money from tourists and would have been successful too if you're not street-smart with them.
Overall I'd conclude by saying that keeping your eyes and ears open and being able to tell the difference between what's actually happening and what you learnt from travel guides and the internet will save your chances of getting duped by people, luring you about things that doesn't really exist.