Many regard spin legend Erapalli Prasanna as the best offspinner of all times. Most batsmen had no answers to the Indian spin quartet in the 1960s and the 1970s, which was spearheaded by the offspinner. (The other three were Bishen Singh Bedi, S Venkataraghavan and Chandrasekhar)The conjuror of the Doosra Veteran cricket writer and former Ranji player V Ramnarayan, in one of his works, mentioned that Prasanna had mastered the art of bowling doosras long before Pakistan spinner Saqlain Mushtaq, and that Prasanna delivered it with a perfectly straight arm, though without trying the trick in a match situation. On numerous occasions, Prasanna deceived batsmen with his ability to turn, flight and loop the cherry. Prasanna represented India in 49 Tests and scalped 189 wickets at an average of 30.38.Also read: Harbhajan Singh trying too hard in comeback, says former India spinner The legendary offspinner in an interview to bcci.tv talked about the art of spin bowling and what made him a master at it. Here are a few tips on offspin for the current Indian squad which just lost a Test on a turning pitch at Galle. Bowling length: Prasanna firmly believes that bowling length consistently had made him what he is. He discards the idea of bowling short. He says the ability to land the ball at the right spot will provide room to try subtle variations.Field set: He describes setting one’s own field as a crucial aspect for a bowler.”I always believed in one thing – the captain is there but as a bowler you have to set your own field, otherwise it becomes like backseat driving. If you bowl to the field set by the captain, that means you are sacrificing your line of thinking,” Prasanna said.advertisementPlay basketball: Prasanna says each and every aspect of basketball is helpful in cricket. “You will be running up and down for 60 minutes, which will build stamina.””You will also be jumping and shooting a lot, which will develop your bowling arm. While dribbling you will bend and hit, which again, will make you agile and develop your back and feet muscles,” he said.Fish effect: Adapting to bowl into the wind and with the wind are always challenging for spinners. And here, Prasanna brings ‘fish effect’ into the context to confront the issue.”You can also employ something known as the ‘fish effect’, a principle that is used in flying planes. While taking off and landing, the plane is held in floating position because of this phenomenon. The fish effect is nothing but the friction created between the wind and the ball. Due to this, the ball holds in the air for longer before drifting and then dips suddenly, hence deceiving the batsman in flight.”Good rapport with the captain: The Karnataka bowler believes sharing a good rapport with the skipper is a prerequisite for spinners.”The captain should have faith in you. He should also be able to correctly assess you as to how good you are as an independent bowler. He has to allow you to bowl your way with your fields. With MAK Pataudi, once I set my field, he knew exactly what I was trying to do. He knew what ball was coming up next. There was an unspoken understanding between us,” Prasanna said.