The State Level Single Window Clearance Authority (SLSWCA) held under the chairmanship of Chief Secretary Aditya Prasad Padhi accorded in-principle approval to the projects.
The proposals approved by the SLSWCA were from different sectors such as food processing, plastic, tourism, logistics and metal.
Supreme Industries Ltd, a market leader in India's plastic industry, proposed to set up a manufacturing unit in Khordha district for production of plastic pipes, PVC water tanks and allied products with an investment of Rs 151.30 crore.
The project will create job opportunities for 320 persons, an official said.
Mayfair Hotels and Resort Ltd has proposed to set up a convention centre with a capacity of 4,000 in Bhubaneswar with an investment of Rs 300 crore and employment potential of 850 people.
The SLSWCA also cleared the proposal for two food processing units.
Thailand-based Intecqc Feed Co Ltd proposed to set up a shrimp feed manufacturing unit in Khordha with an investment of Rs 107.88 crore and employment potential of 205 people.
Explore Food Pvt Ltd will has proposed to set up a ready-to-eat snacks unit in Khordha with an investment of Rs 51.40 crore and employment potential of 194 persons, the official said.
The proposal of Bhagirathi Packaging Pvt Ltd, an associate company of Fogla Group, to set up polypropylene (PP) woven bags production unit in Bhadrak district with an investment of Rs 60.29 crore and employment potential of 500 people was also approved.
Chalah Infratech Pvt Ltd has proposed to set up a logistic park in Khordha district entailing an investment of Rs 99.80 crore and job opportunities for 234 people.
KAI International Pvt Ltd has proposed to set up an iron ore beneficiation and pellet plant in Sundargarh district with an investment of Rs 265.72 crore and employment potential of 475 people.
( With inputs from IANS )