The best four months to perform the house warming function are:

1. VAIKASI (mid May to mid June)
2. AVANI (mid August to mid September)
3. KARTHIGAI (mid November to mid December)
4. MASI (mid February to mid March) 

The next best four months to perform the house warming function are:

1. CHITHIRAI (mid April to mid May)
2. ADI (mid July to mid August)
3. AIPPASI (mid October to mid November)
4. THAI (mid January to mid February) 

The worst four months to perform the house warming function are:

1.ANI (mid June to mid July)
2. PURATTASI (mid September to mid October)
3. MARGAZHI (mid December to mid January)
4. PANGUNI (mid March to mid April)