| Gandhinagar | |
| Other Name: | Gandhinagar-Lakshmipuram |
| Settlement Type: | town |
| Pushpin Map: | India Tamil Nadu |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Tamil Nadu, India |
| Coordinates: | 12.22°N 79.11°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Tamil Nadu |
| Subdivision Type2: | District |
| Subdivision Name2: | Tiruvannamalai |
| Unit Pref: | Metric |
| Elevation M: | 169 |
| Population Total: | 48923 |
| Population As Of: | 2012 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Tamil |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 606 602,606 610 & 606 603 . |
| Area Code Type: | Telephone code |
| Area Code: | 91(04175)- |
| Registration Plate: | TN-25 |
| Blank1 Name Sec1: | Nearest city |
| Blank2 Name Sec1: | Sex ratio |
| Blank3 Name Sec1: | Rainfall |
| Blank3 Info Sec1: | 76 |
| Blank1 Name Sec2: | Avg. summer temperature |
| Blank1 Info Sec2: | 41°C |
| Blank2 Name Sec2: | Avg. winter temperature |
| Blank2 Info Sec2: | 18°C |
Gandhinagar-lakshmipuram is 3rd grade municipality in thiruvannamalai UA, constructed in the year 2002 from the former gandhinagar special grade town panchayat and laskmipuram area carved out from the thyagi annamalai nagar town panchayat of thiruvannamalai UA.Many new peoples considers Gandhinagar is the part of thiruvannamalai city but it only serves as a part of Thiruvannamalai UA.It spreads out on the Tindivanam and Pondicherry(via:villupuram & vettavalam)roads of thiruvannamalai UA.
In 2001 gandhinagar has population of 30 thousand and in 2002 after joining of lakshmipuram