Urban Flood Mitigation of Thiruvananthapuram was called Operation Anantha. This was a flood mitigation project initiated by the District Disaster Management Authority of Thiruvananthapuram with financial support from the State Disaster Mitigation Fund. The project was triggered by Proceedings of Chairman, DDMA, Thiruvananthapuram No. H1-33275/15 (2) dated 2-05-2015. Under the project, 30 km of canals and storm water drains in the city had been desilted and widened up to 3.5 meters. The project was approved by the Government vide GO (Rt) No. 178/15/DMD dated 12-05-2015. The flood mitigation measures under Operation Anantha were put to test as Thiruvananthapuram city received 66.8 mm rainfall on 17-05-2016. No water-logging was experienced at flood-prone Thampanoor and the central bus stand. Amayizhanjan canal that passes beneath the Thiruvananthapuram Central railway station sucked in maximum water due to the recent cleaning works undertaken. Numerous encroachments were evicted to implement the first phase of the project.
The project was extended to Kannur District for supporting the eviction and cleaning up of a major pond in Kannur City which is expected to substantially reduce the flooding and drought conditions in the city limits. The first phase of the project culminated on 19-05-2016 with a national workshop for sharing the lessons learned attended by dignitaries from across the country. The Government in its budget speech in February 2016 indicated that the project will be extended to other districts with budgetary allocation as a plan scheme under Department of Urban Affairs and thereby mainstream such actions.
Major Government orders sanctioning funds for the implementation of the project are:
| Government Order | Amount |
| GO (Rt) No. 2687/2015/DMD dated 25-05-2015 | ₹5 lakhs |
| GO (Ms) No. 207/2015/DMD dated 25-05-2015 | ₹10 crores |
| GO (Rt) No. 6010/2015/DMD dated 18-11-2015 | ₹12.45 crores |
| GO (Rt) No. 892/2016/DMD dated 5-02-2016 | ₹10 crores |