Reloading is legal for arms license holders.It is just that someone told me years ago that Indian law does not allow civilians to buy/sell cordite, nitro glycerine or similar highly combustible chemicals that are used in cartridges/shells etc.
Rule 2(24) of Explosives Rules 2008 says:
Rules 9(4)(5)(6) of Explosives Rules 2008 says:“fireworks” means low hazard explosive comprising of any composition or device manufactured with a view to produce coloured fire or flame, light effect, sound effect, smoke effect (coloured or natural), or combination of such effects and includes fog-signals, fuses, rockets, shells, percussion caps;
Rule 57 of Explosives Rules 2008 says:Rule 9. No licence needed in certain cases.— Notwithstanding anything contained in rule 7, no licence shall be necessary for the following cases, namely :—
(4) transport of safety fuse and fireworks;
(5) possession of fireworks not exceeding one hundred kilogram for own use and not for sale;
(6) possession by any person for his own private use and not for sale of gunpowder not exceeding five kilograms and fifty metres of safety fuse in any State other than Bihar, Kerala, Tamilnadu and West Bengal and of small arm nitro-compound not exceeding five kilograms except in the State of Kerala;
Related matter was also discussed here http://indiansforguns.com/viewtopic.php?f=4&t=15556Rule 57. Small quantities of fireworks exempted.—
Nothing contained in rules 49, shall apply to the transport of manufactured fireworks in the custody of a person entitled to possess them without a licence under sub-rule (5) of rule 9:
Provided that not more than five kilograms of manufactured fireworks, securely packed in original packing, shall be so transported in any motor vehicle used for conveyance of more than six passengers.