The delay by Today Homes Infrastructures amounted to deficiency in service, the National Consumer Disputes Redressal Commission said. The national commission upheld the state commission's decision against the interest collected by the builder from the flat applicants, OP Ratra, 72, and his wife Harmeet, 68.

Ratra and his wife booked two floors in the project of the builder's units bearing No. 86 at the ground floor and the first floor, Blossom-II at Sector-51, Gurgaon. The two complainants totally paid Rs 66.88 lakh. "In our observation, the builder claiming that he has right to charge interest at the rate of 15 percent per annum appears to be unjust and an exploitation of consumers. Hence, the builder charging interest of Rs 1.91 lakh was not proper and is an unfair trade practice," said commission Presiding Member JM Malik and Member SM Kantikar.

Hauling up Today Homes Infrastructures for delaying the delivery of possession of the flats by 20 months, the national commission said, "The complainants (couple) had paid the entire price of the units, the possession should be given with all amenities. The petitioner failed to do so, which is deficiency in service."

"The builder tried to cover up its deficiency by taking the plea that the delay was caused due to non-availability of the electricity by the electricity department and the possession could be taken without the electricity connection," the commission said.

"As the complainants are 72 and 68-year-old, the senior citizens suffered exploitation and inconvenience due to non-delivery of the flat within specified period of time and were made to run from pillar to post," the national commission added.

The builder has the option of challenging the national consumer commission's decision in the Supreme Court.