This study is a randomized, double blinded, parallel group, multicentre trial evaluating the efficacy of app based oral motor therapy and behaviour therapy in improving functions of oral musculature and oral hygiene in children with Cerebral Palsy(CP). Written informed consent from parents/caretakers (and assent whenever possible) would be taken. The children with CP aged 4 to 14 years would be recruited from the different special child care schools and centres providing care for special health care needs children in Bengaluru. They will also be recruited from among the patients who visit the Department of Pediatric and Preventive Dentistry of the dental college in Bengaluru where the ethical clearance has been procured. The mobile app meant for the study would be developed with the help of software professionals. The children would be randomly allocated to the two groups, one group being the app based oral motor therapy; the other group being the behaviour therapy. App based oral motor therapy and behaviour therapy (behaviour modification program) would be delivered over a period of 6 months, through trained respective therapists. Baseline and 6 month evaluation of oral motor dysfunctions, oral hygiene status, stress and coping levels of parents/caretakers would be performed. If feasible, the same children can be followed up till end of one year from the commencement of intervention, to observe the benefits rendered. The primary outcome measures would be improvement in oral motor functions and oral hygiene among children with Cerebral Palsy. Secondary outcome measures would be decreased stress and increased coping levels among parents/caretakers of children with Cerebral Palsy.