We are the first Centre in Coimbatore to start Linear Accelerator. Apart from conventional radiotherapy we offer appropriate technology for given case including high precision stereotactic procedures and the latest VMAT technology. This machine is a boon to the field of radiation oncology. Linac generates multiple energies of X-Rays from 4MV to 25MV. X-ray mode is used to treat deep seated tumours. Electron mode is available for treating superficial tumours. Electron beams in the range of 6 to 20 Mev are available. The energy level is chosen according to the depth of the tumour. Multileaf collimator (MLC) is a very important accessory in the Linac for planning 3D Conformal Radio Therapy (CRT)f. It has the ability to set the field to various shapes according to the target volume and produce arbitrary intensity distributions remotely and automatically. Computer controlled MLC is ideally suited for delivering complex treatment safely, in times comparable with or even shorter than the manual delivery of conventional treatment