The best type of demat account in India depends on an individual's specific needs and investment goals. Regular demat accounts are suitable for Indian residents with diverse investment portfolios. Repatriable demat accounts are designed for NRIs who want to invest in Indian securities and repatriate funds abroad. Non-repatriable demat accounts are also for NRIs but do not allow fund repatriation. BSDA accounts are ideal for small investors with lower holdings, as they offer concessions or waivers on AMC charges.