@ Sukanta, yes hydrogel is very effective. Hydrogels can absorb and hold rain water and irrigation water and therefore help to reduce deep percolation by using gravitational water as well as capillary water. Hydrogel is actually a three-dimensional network of hydrophilic polymers that can swell in water and hold a large amount of water while maintaining the structure due to chemical or physical cross-linking of individual polymer chains.

It is an effective technology which can retain soil moisture

Our soils are heavy textured with more than 40% clay, so the effectiveness may be a question.

@Sachin Bhai thanks a lot for giving your practical experience.