1997–98 Tamil Nadu Legislative Assembly by-elections

By-elections to Pudukottai constituency was held in Tamil Nadu on 8 February 1997. Elections for two state assembly constituencies, Coonoor and Aruppukottai were held on 22 February 1998.

The results were a sweep for the DMK. However, all three seats were held by DMK from the 1996 election, and there was a significant improvement by the AIADMK, losing by very small margins in all three constituencies.

Constituents and Results
Source: Election Commission of India