Alandur is well connected with road network system and round the clock bus facility is available. Kathipara Junction is at Alandur; there are severl bus routes. It has the RTO for meenambakkam at its former municipal building which issues registration series TN-22.
The nearest railway station is St. Thomas Mount Railway Station; there are plans to accommodate five modes of public transport – suburban railway, Southern Railway, Metro Rail, MRTS and public buses. The St. Thomas Mount Railway station will be providing a facility to accommodate 1200 cars. This will be the first time that a commercial space of two floors will be attached with the transit station. The work is in-progress and is expected to be completed by the year 2015.
As of the census of India 2001, Alandur had a population of 146,287 comprising 74,836 males and 71,451 females, making the sex ratio (number of females per thousand males) of the town to 955. A total of 14,983 people were under six years of age and the child sex ratio (number of females per thousand males under six years of age) stood at 947. The town had an average literacy of 91.54%, higher than the national average of 59.5%. A total of 13,799 comprising 10.51% of the population belonged to Scheduled Castes (SC) and 188 comprising 0.14% of the population belonged to Scheduled tribes (ST). There were are total of 34,927 households in the town. As of 2001, Alandur had a total of 46,115 main workers: 458 cultivators, 190 agricultural labourers, 606 in house hold industries and 44,861 other workers. There was a total of 3,826 marginal workers: 107 marginal cultivators, 51 marginal agricultural labourers, 103 marginal workers in household industries and 3,565 other marginal workers. In 2011, the population of Alandur increased to 164,162 with a growth rate of 12 percent.
MGR Market or Alandur grocery market is about 200 years old. Its located in the middle of MKN Road (MKN Road starts from Guindy and ends at Meenabakkam Airport in GST Road). Alandur grocery market was donated to local marketeers by Mr. M. G. Ramachandran, a philanthropist and a former chief minister of Tamil Nadu.